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Merck & Co., Inc. is an American multinational
pharmaceutical Medication (also called medicament, medicine, pharmaceutical drug, medicinal product, medicinal drug or simply drug) is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy ( pharmacotherapy) is an important part of the ...
company headquartered in
Rahway, New Jersey Rahway () is a city (New Jersey), city in southern Union County, New Jersey, Union County, in the U.S. state of New Jersey. A bedroom community of New York City, it is centrally located in the Rahway River, Rahway Valley region, in the New ...
. The company does business as Merck Sharp & Dohme or MSD outside the United States and Canada. It is one of the largest pharmaceutical companies in the world, generally ranking in the global top five by revenue. Merck & Co. was originally established as the American affiliate of Merck Group in 1891. Merck develops and produces medicines, vaccines, biologic therapies and animal health products. It has several blockbuster products, including
cancer immunotherapy Cancer immunotherapy (immuno-oncotherapy) is the stimulation of the immune system to treat cancer, improving the immune system's natural ability to fight the disease. It is an application of the basic research, fundamental research of cancer im ...
, anti-diabetic medications, and vaccines for
HPV Human papillomavirus infection (HPV infection) is caused by a DNA virus from the ''Papillomaviridae'' family. Many HPV infections cause no symptoms and 90% resolve spontaneously within two years. In some cases, an HPV infection persists and ...
and
chickenpox Chickenpox, also known as varicella ( ), is a highly contagious disease caused by varicella zoster virus (VZV), a member of the herpesvirus family. The disease results in a characteristic skin rash that forms small, itchy blisters, which ...
, each generating significant revenue as of 2020. The company is ranked 71st on the 2022 ''Fortune'' 500 and 87th on the 2022 ''Forbes'' Global 2000, both based on 2021 revenues. In 2023, the company’s seat in the ''Forbes'' Global 2000 was 73.


Products

The company develops
medicine Medicine is the science and Praxis (process), practice of caring for patients, managing the Medical diagnosis, diagnosis, prognosis, Preventive medicine, prevention, therapy, treatment, Palliative care, palliation of their injury or disease, ...
s,
vaccine A vaccine is a biological Dosage form, preparation that provides active acquired immunity to a particular infectious disease, infectious or cancer, malignant disease. The safety and effectiveness of vaccines has been widely studied and verifi ...
s, biologic therapies and
animal health Animal Health was a UK government executive agency primarily responsible for ensuring that farmed animals in Great Britain were healthy, disease-free and well looked after. One of its key roles was to implement government policies aimed at preve ...
products. In 2020, the company had 6
blockbuster drug Medication (also called medicament, medicine, pharmaceutical drug, medicinal product, medicinal drug or simply drug) is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy (pharmacotherapy) is an important part of the ...
s or products, each with over $1 billion in revenue: ''Keytruda'' (
pembrolizumab Pembrolizumab, sold under the brand name Keytruda, is a humanized antibody, more specifically a PD-1 inhibitor, used in cancer immunotherapy that treats melanoma, lung cancer, head and neck cancer, Hodgkin lymphoma, stomach cancer, cerv ...
), a
humanized antibody Humanized antibodies are antibodies from non-human species whose protein sequences have been modified to increase their similarity to antibody variants produced naturally in humans. The process of "humanization" is usually applied to monoclonal ant ...
used in
cancer immunotherapy Cancer immunotherapy (immuno-oncotherapy) is the stimulation of the immune system to treat cancer, improving the immune system's natural ability to fight the disease. It is an application of the basic research, fundamental research of cancer im ...
that had $14.3 billion in 2020 revenue; ''Januvia'' (
sitagliptin Sitagliptin, sold under the brand name Januvia among others, is an anti-diabetic medication used to treat type 2 diabetes. It is in the dipeptidyl peptidase-4 (DPP-4) inhibitor class and works by increasing the production of insulin and decr ...
), an
anti-diabetic medication Drugs used in diabetes treat types of diabetes mellitus by decreasing glucose levels in the blood. With the exception of insulin, most GLP-1 receptor agonists ( liraglutide, exenatide, and others), and pramlintide, all diabetes medications a ...
used to treat
type 2 diabetes Type 2 diabetes (T2D), formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent ...
that had $5.3 billion in 2020 revenue;
Gardasil Gardasil is an HPV vaccine for use in the prevention of certain strains of human papillomavirus (HPV). Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledg ...
, an
HPV vaccine Human papillomavirus (HPV) vaccines are vaccines intended to provide acquired immunity against infection by certain types of human papillomavirus. The first HPV vaccine became available in 2006. Currently there are six licensed HPV vaccines: ...
that had $3.9 billion in 2020 revenue; Varivax, a
varicella vaccine Varicella vaccine, also known as chickenpox vaccine, is a vaccine that protects against chickenpox. One dose of vaccine prevents 95% of moderate disease and 100% of severe disease. Two doses of vaccine are more effective than one. If given to t ...
used to protect against
chickenpox Chickenpox, also known as varicella ( ), is a highly contagious disease caused by varicella zoster virus (VZV), a member of the herpesvirus family. The disease results in a characteristic skin rash that forms small, itchy blisters, which ...
that had $1.9 billion in 2020 revenues; ''Bridion'' (
Sugammadex Sugammadex, sold under the brand name Bridion, is a medication for the reversal of neuromuscular blockade induced by rocuronium and vecuronium in general anaesthesia. It is the first selective relaxant binding agent (SRBA). It is marketed by ...
), a
neuromuscular-blocking drug Neuromuscular-blocking drugs, or Neuromuscular blocking agents (NMBAs), block transmission at the neuromuscular junction, causing paralysis of the affected skeletal muscles. This is accomplished via their action on the post-synaptic acetylcho ...
that had $1.2 billion in 2020 revenue; and ''Pneumovax 23'', a
pneumococcal polysaccharide vaccine Pneumococcal polysaccharide vaccine, sold under the brand name Pneumovax 23, is a pneumococcal vaccine that is used for the prevention of pneumococcal disease caused by the 23 serotypes of ''Streptococcus pneumoniae'' contained in the vaccine ...
that had $1.1 billion in 2020 revenue. Other major products by the company include ''Isentress'' (
raltegravir Raltegravir, sold under the brand name Isentress, is an antiretroviral medication used, together with other medication, to treat HIV/AIDS. It may also be used, as part of post exposure prophylaxis, to prevent HIV infection following potential e ...
), an
antiretroviral medication The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs as a strategy to control HIV infection. There are several classes of antiretroviral agents that act on different stages of the HIV life-cycle. The use of mul ...
used to treat
HIV/AIDS The HIV, human immunodeficiency virus (HIV) is a retrovirus that attacks the immune system. Without treatment, it can lead to a spectrum of conditions including acquired immunodeficiency syndrome (AIDS). It is a Preventive healthcare, pr ...
that had $857 million in 2020 revenue; ''Simponi'' (
golimumab Golimumab, sold under the brand name Simponi, is a human monoclonal antibody which is used as an immunosuppressive medication. Golimumab targets tumor necrosis factor alpha (TNF-alpha), a pro-inflammatory molecule and hence is a TNF inhibitor. ...
), a
human Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are Hominidae, great apes characterized by their Prehistory of nakedness and clothing ...
monoclonal antibody A monoclonal antibody (mAb, more rarely called moAb) is an antibody produced from a cell lineage made by cloning a unique white blood cell. All subsequent antibodies derived this way trace back to a unique parent cell. Monoclonal antibodie ...
used as an
immunosuppressive drug Immunosuppressive drugs, also known as immunosuppressive agents, immunosuppressants and antirejection medications, are drugs that inhibit or prevent the activity of the immune system. Classification Immunosuppressive drugs can be classifie ...
that had $838 million in 2020 revenue; RotaTeq, a
rotavirus vaccine A rotavirus vaccine is a vaccine used to protect against rotavirus infections, which are the leading cause of severe diarrhea among young children. These vaccines prevent 15–34% of severe diarrhea in the developing world and 37–96% ...
that had $797 million in 2020 revenue; and ''Lynparza'' (
olaparib Olaparib, sold under the brand name Lynparza, is a medication for the maintenance treatment of BRCA-mutated advanced ovarian cancer in adults. It is a PARP inhibitor, inhibiting poly ADP ribose polymerase (PARP), an enzyme involved in DNA rep ...
), a medication for the maintenance treatment of BRCA-mutated advanced
ovarian cancer Ovarian cancer is a cancerous tumor of an ovary. It may originate from the ovary itself or more commonly from communicating nearby structures such as fallopian tubes or the inner lining of the abdomen. The ovary is made up of three different ...
in adults that generated $725 million in 2020 revenue for the company. Details of Merck's major products are as follows: *
Januvia Sitagliptin, sold under the brand name Januvia among others, is an anti-diabetic medication used to treat type 2 diabetes. It is in the dipeptidyl peptidase-4 (DPP-4) inhibitor class and works by increasing the production of insulin and decre ...
(sitagliptin) is a dipeptidyl peptidase IV inhibitor for the treatment of type 2 diabetes. In 2013, Januvia was the second largest selling diabetes drug worldwide. Januvia is commonly paired with the generic anti-diabetes drug
metformin Metformin, sold under the brand name Glucophage, among others, is the main first-line medication for the treatment of type2 diabetes, particularly in people who are overweight. It is also used in the treatment of polycystic ovary syndrome, ...
. It has been popular due in part because unlike many other diabetes drugs, it causes little or no weight gain and is not associated with hypoglycemic episodes. Merck also sells a single pill combination drug containing both Januvia and metformin under the trade name Janumet. There has been some concern that treatment with Januvia and other DPP-IV inhibitors may be associated with a modestly increased risk of pancreatitis. *
Zetia Ezetimibe, sold under the brand name Zetia among others, is a medication used to treat high blood cholesterol and certain other lipid abnormalities. Generally it is used together with dietary changes and a statin. Alone, it is less preferred ...
(ezetimibe) is a drug for hypercholesterolemia that acts by inhibiting the absorption of dietary cholesterol. Zetia has been controversial, as it was initially approved based on its impact on serum cholesterol levels without proof that it actually impacted the incidence of cardiovascular disease. Results of the IMPROVE-IT study, however, introduced at the 2014 Scientific Sessions of the American Heart Association, showed a statistically significant, albeit modest, benefit in adding Zetia to simvastatin for high-risk, post-acute-coronary-syndrome patients. * Remicade (infliximab) is a monoclonal antibody directed toward the cytokine
TNF-alpha Tumor necrosis factor (TNF), formerly known as TNF-α, is a chemical messenger produced by the immune system that induces inflammation. TNF is produced primarily by activated macrophages, and induces inflammation by binding to its receptors o ...
and used for the treatment of a wide range of autoimmune disorders, including
rheumatoid arthritis Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects synovial joint, joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and h ...
,
Crohn's disease Crohn's disease is a type of inflammatory bowel disease (IBD) that may affect any segment of the gastrointestinal tract. Symptoms often include abdominal pain, diarrhea, fever, abdominal distension, and weight loss. Complications outside of the ...
,
ankylosing spondylitis Ankylosing spondylitis (AS) is a type of arthritis from the disease spectrum of axial spondyloarthritis. It is characterized by long-term inflammation of the joints of the spine, typically where the spine joins the pelvis. With AS, eye and bow ...
,
plaque psoriasis Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by patches of abnormal skin. These areas are red, pink, or purple, dry, itchy, and scaly. Psoriasis varies in severity from small localized patches to complete b ...
, and others. Remicade and other TNF-alpha inhibitors exhibit additive therapeutic effects with methotrexate and improve quality of life. Adverse effects include increased risk of infection and certain cancers. Merck had rights to the drug in certain areas, while
Janssen Biotech Johnson & Johnson Innovative Medicine (formerly Janssen Pharmaceuticals) is a Belgian pharmaceutical company headquartered in Beerse, Belgium, and wholly owned by Johnson & Johnson. It was founded in 1953 by Paul Janssen. In 1961, Janssen Ph ...
had rights in other areas; in 2017, Merck announced a biosimilar to Remicade, Renflexis. *
Gardasil Gardasil is an HPV vaccine for use in the prevention of certain strains of human papillomavirus (HPV). Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledg ...
(recombinant human papilloma virus vaccine) is a vaccine against multiple serotypes of
human papilloma virus Human papillomavirus infection (HPV infection) is caused by a DNA virus from the ''Papillomaviridae'' family. Many HPV infections cause no symptoms and 90% resolve spontaneously within two years. In some cases, an HPV infection persists and r ...
(HPV), which is responsible for most cases of cervical cancer worldwide. * Isentress (raltegravir) is a human immunodeficiency virus integrase inhibitor for the treatment of HIV infection. It is the first anti-HIV compound having this mechanism of action. It is part of one of several first line treatment regimens recommended by the
United States Department of Health and Human Services The United States Department of Health and Human Services (HHS) is a cabinet-level executive branch department of the US federal government created to protect the health of the US people and providing essential human services. Its motto is ...
. *
Keytruda Pembrolizumab, sold under the brand name Keytruda, is a humanized antibody, more specifically a PD-1 inhibitor, used in cancer immunotherapy that treats melanoma, lung cancer, head and neck cancer, Hodgkin lymphoma, stomach cancer, cervical c ...
(pembrolizumab) is an immune modulator for the treatment of cancer. On September 4, 2014, the US Food and Drug Administration (FDA) approved
Pembrolizumab Pembrolizumab, sold under the brand name Keytruda, is a humanized antibody, more specifically a PD-1 inhibitor, used in cancer immunotherapy that treats melanoma, lung cancer, head and neck cancer, Hodgkin lymphoma, stomach cancer, cerv ...
(MK-3475) as a breakthrough therapy for melanoma treatment. In clinical trials, pembrolizumab provided partial tumor regression in about one quarter of patients, many of whom have not seen further progression of their disease in over 6 months of follow-up. * Invanz (
Ertapenem Ertapenem, sold under the brand name Invanz, is a carbapenem antibiotic medication used for the treatment of infections of the abdomen, the lungs, the upper part of the female reproductive system, and the diabetic foot. The most common side ef ...
) is an injectable antibiotic, rights to which Merck has owned since 1999. Merck was in a legal dispute with the Taiwanese company Savior Lifetec over their attempt to secure rights to sell a
generic drug A generic drug is a pharmaceutical drug that contains the same chemical substance as a drug that was originally protected by chemical patents. Generic drugs are allowed for sale after the patents on the original drugs expire. Because the active ch ...
version in the United States. Savior has since obtained approval to market generic ertapenem. * Mexsana is an antiseptic medicated powder. * Mectizan (ivermectin) is an anti-parasitic medicine traditionally used to treat
river blindness Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm ''Onchocerca volvulus''. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindne ...
. It is the focus of Merck's Mectizan Donation Program, wherein Merck has donated doses of the drug to treat millions of people in countries such as Yemen and African nations. *
Molnupiravir Molnupiravir, sold under the brand name Lagevrio, is an antiviral medication that inhibits the replication of certain RNA viruses. It is used to treat COVID19 in those infected by SARS-CoV-2. It is taken by mouth. Molnupiravir is a prodrug o ...
is an antiviral pill to treat
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever ...
, developed in partnership with Ridgeback Biotherapeutics. Merck & Co. publishes '' The Merck Manuals'', a series of medical reference books for physicians, nurses, technicians, and veterinarians. These include the ''
Merck Manual of Diagnosis and Therapy ''The Merck Manual of Diagnosis and Therapy'', referred to as ''The Merck Manual'', is the world's best-selling medical textbook, and the oldest continuously published English language medical textbook. First published in 1899, the current print e ...
'', the world's best-selling medical reference. ''
The Merck Index ''The Merck Index'' is an encyclopedia of chemicals, drugs and biologicals with over 10,000 monographs on single substances or groups of related compounds published online by the Royal Society of Chemistry. History The first edition of the Mer ...
'', a compendium of chemical compounds, was published by Merck & Co. until it was acquired by the
Royal Society of Chemistry The Royal Society of Chemistry (RSC) is a learned society and professional association in the United Kingdom with the goal of "advancing the chemistry, chemical sciences". It was formed in 1980 from the amalgamation of the Chemical Society, the ...
in 2012.


History


Roots and early history

Merck & Co. traces its origins to its former German parent company
Merck Group The Merck Group, branded and commonly known as Merck, is a German Multinational corporation, multinational science and technology company headquartered in Darmstadt, with about 60,000 employees and a presence in 66 countries. The group include ...
, which was established by the
Merck family The Merck family is a German nobility, German noble family of industrialists and bankers, known for establishing the world's oldest pharmaceutical company Merck KGaA, Merck, its American former subsidiary Merck & Co. (MSD), which is now an inde ...
in 1668 when Friedrich Jacob Merck purchased a pharmacy in
Darmstadt Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the ...
. In 1827, Merck Group evolved from a pharmacy to a drug manufacturer company with the commercial manufacture of
morphine Morphine, formerly also called morphia, is an opiate that is found naturally in opium, a dark brown resin produced by drying the latex of opium poppies (''Papaver somniferum''). It is mainly used as an analgesic (pain medication). There are ...
. Merck perfected the chemical process of deriving morphine from
opium Opium (also known as poppy tears, or Lachryma papaveris) is the dried latex obtained from the seed Capsule (fruit), capsules of the opium poppy ''Papaver somniferum''. Approximately 12 percent of opium is made up of the analgesic alkaloid mor ...
and later introduced
cocaine Cocaine is a tropane alkaloid and central nervous system stimulant, derived primarily from the leaves of two South American coca plants, ''Erythroxylum coca'' and ''Erythroxylum novogranatense, E. novogranatense'', which are cultivated a ...
, used to treat sinus problems and to add to beverages to boost energy levels. In 1887 a German-born, long-time Merck employee, Theodore Weicker, went to the United States to represent Merck Group. In 1891, with $200,000 received from E. Merck, Weicker started Merck & Co., with headquarters in lower Manhattan. That year George Merck, the 23-year-old son of the then head of E. Merck (and grandson of the founder) joined Weicker in New York. Merck & Co. operated from 1891 to 1917 as the US subsidiary of the
Merck Group The Merck Group, branded and commonly known as Merck, is a German Multinational corporation, multinational science and technology company headquartered in Darmstadt, with about 60,000 employees and a presence in 66 countries. The group include ...
.


Nationalization

After the U.S. entered
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, due to its German connections, Merck & Co. was the subject of
expropriation Nationalization (nationalisation in British English) is the process of transforming privately owned assets into public assets by bringing them under the public ownership of a national government or state. Nationalization contrasts with p ...
under the
Trading with the Enemy Act of 1917 The Trading with the Enemy Act (TWEA) of 1917 (, codified at and et seq.) is a United States federal law, enacted on October 6, 1917, in response to the United States declaration of war on Germany on April 6, 1917. It continues to give the P ...
. The government seized 80 percent of the shares owned by the German parent company and sold it. In 1919, George F. Merck (head of the American branch of the Merck family), in partnership with
Goldman Sachs The Goldman Sachs Group, Inc. ( ) is an American multinational investment bank and financial services company. Founded in 1869, Goldman Sachs is headquartered in Lower Manhattan in New York City, with regional headquarters in many internationa ...
and
Lehman Brothers Lehman Brothers Inc. ( ) was an American global financial services firm founded in 1850. Before filing for bankruptcy in 2008, Lehman was the fourth-largest investment bank in the United States (behind Goldman Sachs, Morgan Stanley, and Merril ...
, bought the company back at a U.S. government auction for $3.5 million, but Merck & Co. remained a separate company from its former German parent. Merck & Co. holds the trademark rights to the "Merck" name in the United States and Canada, while its former parent company retains the rights in the rest of the world; the right to use the Merck name was the subject of litigation between the two companies in 2016. In 1925, George W. Merck succeeded his father George F. Merck as president. In 1927, the corporation merged with the Powers- Weightman-Rosengarten Company, a Philadelphia quinine manufacturer. George Merck remained president and Frederic Rosengarten became chairman of the board. In 1929,
H. K. Mulford Company The H. K. Mulford Company was a pharmaceutical company founded in Philadelphia, Pennsylvania. The company was founded in the late 1880s by Henry K. Mulford after his purchase of the Old Simes drugstore at 18th and Market Streets. The company was pu ...
merged with Sharp and Dohme, Inc. and brought vaccine technology, including immunization of cavalry horses in World War I and delivery of a diphtheria antitoxin to Merck & Co. In 1943,
streptomycin Streptomycin is an antibiotic medication used to treat a number of bacterial infections, including tuberculosis, Mycobacterium avium complex, ''Mycobacterium avium'' complex, endocarditis, brucellosis, Burkholderia infection, ''Burkholderia'' i ...
was discovered during a Merck-funded research program in Selman Waksman's laboratory at
Rutgers University Rutgers University ( ), officially Rutgers, The State University of New Jersey, is a Public university, public land-grant research university consisting of three campuses in New Jersey. Chartered in 1766, Rutgers was originally called Queen's C ...
. It became the first effective treatment for
tuberculosis Tuberculosis (TB), also known colloquially as the "white death", or historically as consumption, is a contagious disease usually caused by ''Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can al ...
. At the time of its discovery,
sanatorium A sanatorium (from Latin '' sānāre'' 'to heal'), also sanitarium or sanitorium, is a historic name for a specialised hospital for the treatment of specific diseases, related ailments, and convalescence. Sanatoriums are often in a health ...
s for the isolation of tuberculosis-infected people were a ubiquitous feature of cities in developed countries, with 50% dying within 5 years of admission. Although Merck's agreement with Rutgers gave it exclusive rights to streptomycin, at Waksman's request the company renegotiated the agreement, returning the rights to the university in exchange for a royalty. The university then set up non-exclusive licenses with seven companies to ensure a reliable supply of the antibiotic.


1950–2000

In the 1950s,
thiazide Thiazide () refers to both a class of sulfur-containing organic molecules and a class of diuretics based on the chemical structure of benzothiadiazine. The thiazide drug class was discovered and developed at Merck and Co. in the 1950s. The firs ...
diuretics were developed by Merck scientists Karl H. Beyer, James M. Sprague, John E. Baer, and Frederick C. Novello and led to the marketing of the first drug of this class,
chlorothiazide Chlorothiazide, sold under the brand name Diuril among others, is an organic compound used as a diuretic and as an antihypertensive. It is used both within the hospital setting or for personal use to manage excess fluid associated with congestiv ...
, under the trade name Diuril in 1958. The research leading to the discovery of chlorothiazide, leading to "the saving of untold thousands of lives and the alleviation of the suffering of millions of victims of hypertension" was recognized by a special Public Health Award from the Lasker Foundation in 1975. In 1953, Merck & Co. merged with Philadelphia-based Sharp & Dohme, Inc., becoming the largest U.S. drugmaker. Sharp and Dohme had acquired
H. K. Mulford Company The H. K. Mulford Company was a pharmaceutical company founded in Philadelphia, Pennsylvania. The company was founded in the late 1880s by Henry K. Mulford after his purchase of the Old Simes drugstore at 18th and Market Streets. The company was pu ...
in 1929, adding
smallpox Smallpox was an infectious disease caused by Variola virus (often called Smallpox virus), which belongs to the genus '' Orthopoxvirus''. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (W ...
vaccines to its portfolio. The combined company kept the trade name Merck in the United States and Canada, and as Merck Sharp & Dohme (MSD) outside North America. In 1965, Merck & Co. acquired Charles Frosst Ltd. of
Montreal Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...
(founded 1899), creating Merck-Frosst Canada, Inc., as its Canadian subsidiary and pharmaceutical research facility. Merck & Co. closed this facility in July 2010 but remerged in 2011 as Merck Canada.
Maurice Hilleman Maurice Ralph Hilleman (August 30, 1919 – April 11, 2005) was a leading American microbiologist who specialized in vaccinology and developed over 40 vaccines, an unparalleled record of productivity. According to one estimate, his vaccines ...
, a scientist at Merck, developed the first
mumps vaccine Mumps vaccines are vaccines which prevent mumps. When given to a majority of the population they decrease complications at the population level. Effectiveness when 90% of a population is vaccinated is estimated at 85%. Two doses are required f ...
in 1967, the first
rubella vaccine Rubella vaccine is a vaccine used to prevent rubella. Effectiveness begins about two weeks after a single dose and around 95% of people become immune. Countries with high rates of immunization no longer see cases of rubella or congenital rubell ...
in 1969, and the first trivalent measles, mumps, rubella (
MMR vaccine The MMR vaccine is a vaccine against measles, mumps, and rubella (German measles), abbreviated as ''MMR''. The first dose is generally given to children around 9 months to 15 months of age, with a second dose at 15 months to 6 years of age, w ...
) in 1971. The incidence of rubella-associated birth defects fell from up to 10,000 per year in the U.S. to zero in the aftermath of the rubella vaccine's development. Hilleman also developed the first
Hepatitis B vaccine Hepatitis B vaccine is a vaccine that prevents hepatitis B. The first dose is recommended within 24 hours of birth with either two or three more doses given after that. This includes those with poor immune function such as from HIV/AIDS and ...
and the first
varicella vaccine Varicella vaccine, also known as chickenpox vaccine, is a vaccine that protects against chickenpox. One dose of vaccine prevents 95% of moderate disease and 100% of severe disease. Two doses of vaccine are more effective than one. If given to t ...
, for chickenpox. The company was incorporated in New Jersey in 1970. John J. Horan became CEO and Chairman in 1976, serving until 1985. Under his leadership, the company's investment in R&D grew threefold, and Merck became the largest pharmaceutical company in the world. In 1979, Merck scientists developed
lovastatin Lovastatin, sold under the brand name Mevacor among others, is a statin medication, to treat high blood cholesterol and reduce the risk of cardiovascular disease. Its use is recommended together with lifestyle changes. It is taken by mouth. ...
(''Mevacor''), the first drug of the
statin Statins (or HMG-CoA reductase inhibitors) are a class of medications that lower cholesterol. They are prescribed typically to people who are at high risk of cardiovascular disease. Low-density lipoprotein (LDL) carriers of cholesterol play ...
class. Merck scientist William C. Campbell and
Satoshi Ōmura is a Japanese biochemist. He is known for the discovery and development of hundreds of pharmaceuticals originally occurring in microorganisms. In 2015, he was awarded the Nobel Prize in Physiology or Medicine jointly with William C. Campbell f ...
developed
ivermectin Ivermectin is an antiparasitic drug. After its discovery in 1975, its first uses were in veterinary medicine to prevent and treat heartworm and acariasis. Approved for human use in 1987, it is used to treat infestations including head lice ...
for
veterinary Veterinary medicine is the branch of medicine that deals with the prevention, management, diagnosis, and treatment of disease, disorder, and injury in non-human animals. The scope of veterinary medicine is wide, covering all animal species, both ...
use in 1981, and later put it to human use against
Onchocerciasis Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm ''Onchocerca volvulus''. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindne ...
in 1987–88 with the name Mectizan; today the compound is used against
river blindness Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm ''Onchocerca volvulus''. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindne ...
,
lymphatic filariasis Lymphatic filariasis is a human disease caused by parasitic worms known as filarial worms. Usually acquired in childhood, it is a leading cause of permanent disability worldwide, impacting over a hundred million people and manifesting itself in ...
,
scabies Scabies (; also sometimes known as the seven-year itch) is a contagious human skin infestation by the tiny (0.2–0.45 mm) mite ''Sarcoptes scabiei'', variety ''hominis''. The word is from . The most common symptoms are severe itchiness a ...
and other parasitic infections.Press release
NobelPrize.org
In 1982, the company formed a
joint venture A joint venture (JV) is a business entity created by two or more parties, generally characterized by shared ownership, shared returns and risks, and shared governance. Companies typically pursue joint ventures for one of four reasons: to acce ...
, KBI Inc., with
AstraZeneca AstraZeneca plc () (AZ) is a British-Swedish multinational pharmaceutical and biotechnology company with its headquarters at the Cambridge Biomedical Campus in Cambridge, UK. It has a portfolio of products for major diseases in areas includi ...
. During the late 1980s and 1990s, the company also established joint ventures with
DuPont Dupont, DuPont, Du Pont, duPont, or du Pont may refer to: People * Dupont (surname) Dupont, also spelled as DuPont, duPont, Du Pont, or du Pont is a French surname meaning "of the bridge", historically indicating that the holder of the surname re ...
to access research and development expertise, and with
Johnson & Johnson Johnson & Johnson (J&J) is an American multinational pharmaceutical, biotechnology, and medical technologies corporation headquartered in New Brunswick, New Jersey, and publicly traded on the New York Stock Exchange. Its common stock is a c ...
to sell over-the-counter consumer medications. In 1985, Merck received approval for
imipenem Imipenem (trade name Primaxin among others) is a synthetic beta-lactam, β-lactam antibiotic belonging to the carbapenems chemical class. developed by Merck scientists Burton Christensen, William Leanza, and Kenneth Wildonger in the mid-1970s. Car ...
, the first member of the
carbapenem Carbapenems are a class of very effective antibiotic agents most commonly used for treatment of severe bacterial infections. This class of antibiotics is usually reserved for known or suspected multidrug-resistant (MDR) bacterial infections. Si ...
class of antibiotics. Antibiotics of the carbapenem class play an important role in treatment guidelines for certain hospital-acquired and multi-drug resistant infections. P. Roy Vagelos became CEO and Chairman that year, succeeding Horan. In 1991, Merck's Kelco subsidiary was responsible for
volatile organic compound Volatile organic compounds (VOCs) are organic compounds that have a high vapor pressure at room temperature. They are common and exist in a variety of settings and products, not limited to Indoor mold, house mold, Upholstery, upholstered furnitur ...
(VOC) emission pollution in the San Diego area. In 1996 Merck paid $1.8 million for polluting the air. New machines were installed to reduce smog emissions by a year. In November 1993, Merck & Co. acquired Medco Containment Services for $6 billion. Merck & Co. spun Medco off ten years later. Merck's
supply chain A supply chain is a complex logistics system that consists of facilities that convert raw materials into finished products and distribute them to end consumers or end customers, while supply chain management deals with the flow of goods in distri ...
reduction programme has been referred to as an example of successful change. Merck reduced its number of global suppliers from 40,000 to less than 10,000 during the period from 1992 to 1997.


2001–2019

In May 2002, The
Bill & Melinda Gates Foundation The Gates Foundation is an American private foundation founded by Bill Gates and Melinda French Gates. Based in Seattle, Washington, it was launched in 2000 and is reported to be the third largest charitable foundation in the world, holding $ ...
purchased stock in Merck. From 2002 through 2005, the Australian affiliate of Merck paid publishing house
Elsevier Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell (journal), Cell'', the ScienceDirect collection of electronic journals, ...
an undisclosed amount to produce eight issues of a medical journal, the '' Australasian Journal of Bone and Joint Medicine''. Although it gave the appearance of being an independent peer-reviewed journal, without any indication that Merck had paid for it, the journal actually reprinted articles that originally appeared in other publications and that were favorable to Merck. The misleading publication came to light in 2009 during a personal injury lawsuit filed over Vioxx; 9 of 29 articles in the journal's second issue referred positively to Vioxx. The CEO of Elsevier's Health Sciences Division, Michael Hansen, admitted that the practice was "unacceptable". In 2005,
CEO A chief executive officer (CEO), also known as a chief executive or managing director, is the top-ranking corporate officer charged with the management of an organization, usually a company or a nonprofit organization. CEOs find roles in variou ...
Raymond Gilmartin retired following Merck's voluntary worldwide withdrawal of
Vioxx Rofecoxib is a COX-2-selective nonsteroidal anti-inflammatory drug ( NSAID). It was marketed by Merck & Co. to treat osteoarthritis, rheumatoid arthritis, juvenile rheumatoid arthritis, acute pain conditions, migraine, and dysmenorrhea. Rofec ...
. Former president of manufacturing
Richard Clark Richard Clark may refer to: * Richard Clark (dermatologist), American dermatologist * Richard Clark (business executive) (born 1946), president of Merck * Richard Clark (director), British television director * Richard Auldon Clark, American conduc ...
was named CEO and company president. In November 2009, Merck & Co. completed a merger with
Schering-Plough Schering-Plough Corporation was an American pharmaceutical company. It was originally the U.S. subsidiary of the German company Schering AG, which was founded in 1851 by Ernst Christian Friedrich Schering. As a result of nationalization, it becam ...
in a US$41 billion deal. Although Merck & Co. was in reality acquiring Schering-Plough, the purchase was declared a "reverse merger", in which "Old" Merck & Co. was renamed Merck Sharp & Dohme, and Schering-Plough renamed as "Merck & Co., Inc. The maneuver was an attempt avoid a "change-of-control" in order to preserve Schering-Plough's rights to market Remicade. A settlement with
Johnson & Johnson Johnson & Johnson (J&J) is an American multinational pharmaceutical, biotechnology, and medical technologies corporation headquartered in New Brunswick, New Jersey, and publicly traded on the New York Stock Exchange. Its common stock is a c ...
was reached in 2011, in which Merck agreed to pay $500 million. Merck Sharp & Dohme remains a subsidiary of the Merck & Co. parent.
Richard Clark Richard Clark may refer to: * Richard Clark (dermatologist), American dermatologist * Richard Clark (business executive) (born 1946), president of Merck * Richard Clark (director), British television director * Richard Auldon Clark, American conduc ...
retired as CEO and company president in October 2011 and
Kenneth Frazier Kenneth Carleton Frazier (born December 17, 1954) is an American business executive. He is executive chairman and former CEO of the pharmaceutical company Merck & Co. (known as MSD outside of North America). After joining Merck & Co. as general ...
became CEO. In October 2013, Merck announced it would cut 8,500 jobs in an attempt to cut $2.5 billion from its costs by 2015. Combined with 7,500 job cuts announced in 2011 and 2012, the layoffs amounted to 20% of its workforce. By 2014, research performed at Merck has led to U.S. FDA approval of 63 new molecular entities. In August 2014, Merck acquired Idenix Pharmaceuticals for $3.85 billion. In December 2014, the company acquired Swiss biotechnology company OncoEthix for up to $375 million. Between 2010 and 2015, the company cut around 36,450 jobs. During that time, the company sold its consumer health business to
Bayer Bayer AG (English: , commonly pronounced ; ) is a German multinational pharmaceutical and biotechnology company and is one of the largest pharmaceutical companies and biomedical companies in the world. Headquartered in Leverkusen, Bayer' ...
and narrowed the company's focus to immunology, vaccines, diabetes, emerging markets and medicines used in hospitals, like certain antibiotics. In January 2015, Merck acquired
Cubist Pharmaceuticals Cubist Pharmaceuticals, Inc. was an American biopharmaceutical company that targeted pathogens like MRSA. . The company employed 638 people, mostly in Lexington, Massachusetts. On 8 December 2014, Merck & Co. acquired Cubist for $102 per share ...
for $102 per share in cash or about $9.5 billion in total. In July 2015, Merck and
Ablynx Ablynx is a subsidiary of biopharmaceutical company Sanofi engaged in the discovery and development of nanobodies, based in Science Park Zwijnaarde, Ghent. History In November 2001, Ablynx was established as a spin-off of the Vlaams Instituut ...
expanded their 18-month-old immuno-oncology collaboration by four years, generating a potential $4.4 billion in milestone payments for the Abylnx. The company also announced it would spend $95 million up front collaborating with cCAM Biotherapeutics and its early-stage treatment similar to Keytruda. Merck & Co. will bring in CM-24, an antibody designed to block the immune checkpoint
CEACAM1 Carcinoembryonic antigen-related cell adhesion molecule 1 (biliary glycoprotein) (CEACAM1) also known as CD66a (Cluster of Differentiation 66a), is a human glycoprotein, and a member of the carcinoembryonic antigen (CEA) gene family. Function ...
. In January 2016, Merck announced two new partnerships; the first with Quartet Medicine and its small molecule pain treatments, the second with Complix investigating intracellular cancer targets, with both collaborations potentially generating up to $595 million and $280 million respectively. Days later the company announced it would acquire IOmet Pharma, with IOmet becoming a wholly owned subsidiary of Merck & Co. The acquisition includes IOmets indoleamine-2,3-dioxygenase 1 (IDO), tryptophan 2,3-dioxygenase (TDO), and dual-acting inhibitors. In July 2016, the company acquired Afferent Pharmaceuticals, developer of a candidate used to block
P2RX3 P2X purinoceptor 3 is a protein that in humans is encoded by the ''P2RX3'' gene. The product of this gene belongs to the family of purinoceptors for ATP. This receptor functions as a ligand-gated ion channel and may transduce ATP-evoked nocicepto ...
receptors, for approximately $1 billion, plus up to $750 million in milestone payments. In 2017, Merck bought the
PARP inhibitor PARP inhibitors are a class of drugs that are a group of pharmacological inhibitors of the enzyme poly ADP ribose polymerase (PARP), which plays a role in repairing DNA in damaged cells. Medical uses of these drugs include the treatment of heri ...
Lynparza from AstraZeneca. In April 2017, Merck Animal Health acquired Vallée S.A., a Brazilian animal health product manufacturer. In September 2017, the company announced it would acquire Rigontec, developer of a candidate to target the retinoic acid-inducible gene I pathway, for $554 million. In October 2017, the company granted the inaugural Merck-AGITG Clinical Research Fellowship in Gastro-Intestinal (GI) Cancer to David Lau, a professional in Melbourne, Australia. In June 2018, Merck acquired
Viralytics Viralytics Ltd is an Australian biotechnology company working in the field of oncolytic viruses, that is, viruses that preferentially infect and kill cancer cells. The company's oncolytic virus product, called Cavatak, is currently in clinical ...
, an Australian viral cancer drug company, for AUD$502 million. In 2018, Merck began the submission process for a Biologics License Application to the
Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a List of United States federal agencies, federal agency of the United States Department of Health and Human Services, Department of Health and Human Services. The FDA is respo ...
under the Breakthrough Therapy Designation for an investigational vaccine, called V920, to fight the Zaire strain of the
Ebola virus ''Orthoebolavirus zairense'' or Zaire ebolavirus, more commonly known as Ebola virus (; EBOV), is one of six known species within the genus ''Ebolavirus''. Four of the six known ebolaviruses, including EBOV, cause a severe and often fatal vira ...
. In April 2019, the company acquired Immune Design for approximately $300 million, gaining access to its immunotherapy programs. It also acquired Antelliq Group for $2.4 billion, or $3.7 billion including debt. In May 2019, Merck announced it would acquire Peloton Therapeutics, developer of a HIF-2alpha inhibitor for
Von Hippel–Lindau disease Von Hippel–Lindau disease (VHL), also known as Von Hippel–Lindau syndrome, is a rare disease, rare genetic disorder with multisystem involvement. It is characterized by visceral cysts and benign tumors with potential for subsequent malignant t ...
-associated
renal cell carcinoma Renal cell carcinoma (RCC) is a kidney cancer that originates in the lining of the Proximal tubule, proximal convoluted tubule, a part of the very small tubes in the kidney that transport primary urine. RCC is the most common type of kidney cance ...
, for up to $2.2 billion. In June 2019, Merck announced it would acquire Tilos Therapeutics for up to $773 million. In November 2019, the company acquired Calporta, which focused on Parkinsons and Alzheimers treatments. In December 2019, Merck Animal Health acquired Vaki, an aquaculture company, from
Pentair Pentair plc (PNR) is an American water treatment company incorporated in Ireland with tax residency in UK, with its main U.S. office in Golden Valley, Minnesota, Golden Valley, Minnesota. Pentair was founded in the US, with 65% of company's reve ...
.


2020–present

In January 2020, Merck acquired ArQule, developer of ARQ 531, an oral
Bruton's tyrosine kinase Bruton's tyrosine kinase (abbreviated Btk or BTK), also known as tyrosine-protein kinase BTK, is a tyrosine kinase that is encoded by the ''BTK'' gene in humans. BTK plays a crucial role in B cell development. Structure BTK contains five di ...
(BTK) inhibitor, for $2.7 billion. In March 2020, Merck was one of ten companies recognised at the inaugural Manufacturing Awards by New Jersey Business magazine and the New Jersey Business and Industry Association. In June 2020, Merck acquired Themis Bioscience, a company focused on vaccines and immune-modulation therapies for infectious diseases including
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever ...
and
cancer Cancer is a group of diseases involving Cell growth#Disorders, abnormal cell growth with the potential to Invasion (cancer), invade or Metastasis, spread to other parts of the body. These contrast with benign tumors, which do not spread. Po ...
. Also in June 2020, Merck Animal Health acquired Quantified Ag, a data and analytics company that monitors cattle body temperature and movement in order to detect illness early. In August 2020, Merck Animal Health acquired IdentiGEN, engaged in DNA-based animal traceability. In September 2020, Merck acquired $1 billion of
Seattle Genetics SeaGen was the world's first large scale commercial tidal stream generator. It was four times more powerful than any other tidal stream generator in the world at the time of installation. It was decommissioned by SIMEC Atlantis Energy Li ...
common stock, and agreed to co-develop ladiratuzumab vedotin. In November 2020, Merck announced it would acquire VelosBio for $2.75 billion, developer of VLS-101, an antibody-drug conjugate designed to target Tyrosine kinase-like orphan receptor 1 (ROR1) in both hematological and solid tumors. VLS-101 is currently Phase I and Phase II clinical trials. The company also announced it would acquire OncoImmune for $425 million and its phase 3 candidate, CD24Fc, used in the treatment of patients with severe and critical COVID-19. In February 2021, Merck Animal Health acquired PrognostiX Poultry. In April 2021, Merck acquired Pandion Therapeutics for $1.85 billion, expanding its offering in treating autoimmune diseases. In June 2021, the U.S. government agreed to spend $1.2 billion to purchase 1.7 million doses of
Molnupiravir Molnupiravir, sold under the brand name Lagevrio, is an antiviral medication that inhibits the replication of certain RNA viruses. It is used to treat COVID19 in those infected by SARS-CoV-2. It is taken by mouth. Molnupiravir is a prodrug o ...
, a Merck product, if it were to be approved by regulators to treat
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever ...
. In October 2021, the company said that the drug reduces the risk of hospitalization or death by around 50% for patients with mild or moderate cases of
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever ...
and that it would seek Emergency Use Authorization for the drug. In July 2021, Robert M. Davis became CEO, succeeding Kenneth Frazier, who became executive chairman. In July 2021, Merck completed the
corporate spin-off A corporate spin-off, also known as a spin-out, starburst or hive-off, is a type of corporate action where a company "splits off" a section as a separate business or creates a second incarnation, even if the first is still active. It is distinct ...
of Organon & Co. In September 2021, Merck announced it would acquire
Acceleron Pharma Acceleron Pharma, Inc. is an American clinical stage biopharmaceutical company based in Cambridge, Massachusetts, Cambridge, Massachusetts with a broad focus on developing medicines that regulate the transforming growth factor beta (TGF-β) superf ...
for $11.5 billion, gaining control over Sotatercept, used in the treatment of
pulmonary hypertension Pulmonary hypertension (PH or PHTN) is a condition of increased blood pressure in the pulmonary artery, arteries of the lungs. Symptoms include dypsnea, shortness of breath, Syncope (medicine), fainting, tiredness, chest pain, pedal edema, swell ...
, and luspatercept-aamt. In September 2022, the company announced it would acquire
Vence Vence (; ) is a commune set in the hills of the Alpes-Maritimes department in the Provence-Alpes-Côte d'Azur region in Southeastern France, north of Nice and Antibes on the Mediterranean coast. Ecclesiastical history The first known Bishop ...
, a livestock management company for an undisclosed sum, incorporating it within
Merck Animal Health Schering-Plough Corporation was an American pharmaceutical company. It was originally the U.S. subsidiary of the German company Schering AG, which was founded in 1851 by Ernst Christian Friedrich Schering. As a result of nationalization, it becam ...
. In December 2022, the company announced a licensing deal with Kelun-Biotech of China whereby it would expand its early cancer pipeline with a set of antibody-drug conjugates; this follows an earlier agreement between the two companies to co-develop such drugs. In April 2023, Merck announced it would acquir
Prometheus Biosciences
Inc for $10.8 billion. In December 2023, Merck announced it had partnered with Owkin to develop artificial intelligence-powered digital pathology diagnostics that could be used to identify patients suitable for immunotherapies. The aim is to come up with tools that can pre-screen patients with four tumour types for the MSI-H biomarker, namely endometrial, gastric, small intestinal, and biliary cancers. In January 2024, the company announced it would acquire Harpoon Therapeutics for $680 million. With this purchase, Merck expands its portfolio of oncological drugs. The main positions are HPN328, an activator of
T-cells T cells (also known as T lymphocytes) are an important part of the immune system and play a central role in the adaptive immune response. T cells can be distinguished from other lymphocytes by the presence of a T-cell receptor (TCR) on their cell ...
that is being researched to treat advanced cancer patients associated with
DLL3 Delta-like 3 (Drosophila), also known as DLL3, is a protein which in humans is encoded by the ''DLL3'' gene. Two transcript variants encoding distinct isoforms have been identified for this gene. Function This gene encodes a member of the delt ...
expression (delta-like ligand 3), an inherent
small cell lung cancer Small-cell carcinoma, also known as oat cell carcinoma, is a type of highly malignant cancer that most commonly arises within the lung, although it can occasionally arise in other body sites, such as the cervix, prostate, and gastrointestinal tr ...
(SCLC),
neuroendocrine tumors Neuroendocrine tumors (NETs) are neoplasms that arise from cells of the endocrine (hormonal) and nervous systems. They most commonly occur in the intestine, where they are often called carcinoid tumors, but they are also found in the pancreas, lu ...
, and several other species. Merck’s portfolio will also be complemented by T-cell attractions using the patented Harpoon Tri-specific design for T cell activation (TriTAC). According to engineering protein technology, tumor cells are destroyed by the patient’s own immune cells, and the ProTriTAC platform works with the TriTAC platform to develop a therapeutic agent that attracts T-cells, but is inactive until it reaches the tumor. In April 2024, Merck completed the acquisition of Abceutics for $208m. In July 2024, Merck completed the acquisition of EyeBio for $3bn. In October 2024, Merck announced the acquisition of Modifi Biosciences for $1.3bn.


Acquisition history

*Merck & Co **Merck & Co ***Merck & Co ****H. K. Mulford Company ****Sharp & Dohme, Inc ****Charles E. Frosst Ltd ****Medco Containment Services Inc ***Schering‑Plough ****
Schering-Plough Schering-Plough Corporation was an American pharmaceutical company. It was originally the U.S. subsidiary of the German company Schering AG, which was founded in 1851 by Ernst Christian Friedrich Schering. As a result of nationalization, it becam ...
*****Schering Corporation *****Plough, Inc ****Organon International *****Alydia Health ****Intervet ****Diosynth ****Nobilon **Imperial Blue Corporation ***Idenix Pharmaceuticals **Maven Corporation ***
Cubist Pharmaceuticals Cubist Pharmaceuticals, Inc. was an American biopharmaceutical company that targeted pathogens like MRSA. . The company employed 638 people, mostly in Lexington, Massachusetts. On 8 December 2014, Merck & Co. acquired Cubist for $102 per share ...
****
Trius Therapeutics Trius Therapeutics () was a biopharma company based in San Diego, CA that focused on the development of antibiotics. Business profile The lead compound from Trius, tedizolid phosphate (formerly torezolid phosphate, TR-701), successfully completed ...
****Optimer Pharmaceuticals **OncoEthix **IOmet Pharma **Afferent Pharmaceuticals **Merck Animal Health ***Vallée S.A. ***Vaki ***Quantified Ag ***IdentiGEN ***PrognostiX Poultry Ltd ***Vence **Rigontec **
Viralytics Viralytics Ltd is an Australian biotechnology company working in the field of oncolytic viruses, that is, viruses that preferentially infect and kill cancer cells. The company's oncolytic virus product, called Cavatak, is currently in clinical ...
**Antelliq Group **Cascade Merger Sub, Inc. ***Immune Design Corp **Peloton Therapeutics **Tilos Therapeutics **Calporta **Argon Merger Sub, Inc. ***ArQule, Inc. **Themis Bioscience **VelosBio **OncoImmune **Astros Merger Sub, Inc. ***
Acceleron Pharma Acceleron Pharma, Inc. is an American clinical stage biopharmaceutical company based in Cambridge, Massachusetts, Cambridge, Massachusetts with a broad focus on developing medicines that regulate the transforming growth factor beta (TGF-β) superf ...
**Prometheus Biosciences **Caraway Therapeutics **Harpoon Therapeutics **Abceutics **EyeBio **Modifi Biosciences **Emergent BioSolutions (Acq 2025)


Philanthropy


Merck Company Foundation

Since it was founded in 1957, the Merck Company Foundation has distributed $740 million in overall charitable distributions including more than $480 million to educational and non-profit organizations. On December 7, 2012, the foundation announced that it was ending its donations to the
Boy Scouts of America Scouting America is the largest scouting organization and one of the largest List of youth organizations, youth organizations in the United States, with over 1 million youth, including nearly 200,000 female participants. Founded as the Boy Sco ...
citing its discrimination against gay people.


Patient assistance programs

Merck & Co. was one of the first American pharmaceutical companies to offer assistance to those unable to afford its medications, beginning a program in the 1950s. Merck & Co. offers seven patient assistance programs, each with specific eligibility requirements.


Hilleman Laboratories

Merck and the Wellcome trust jointly fund the
Hilleman Laboratories Hilleman Laboratories is a Singapore-based vaccine research organisation. The firm is an equal-joint venture between US drug maker Merck & Co Inc and British charitable foundation Wellcome Trust. The research firm is named in honour of Dr. Ma ...
, an India-based non-profit research organization dedicated to the development of low-cost vaccines for use in developing countries. Current projects include the development of low cost, thermostable vaccines for the prevention of cholera, rotavirus, and meningitis.


Merck for Mothers

Merck for Mothers is Merck's global initiative to help create a world where no woman has to die while giving life.


Mectizan donation program

In 1987, Merck began a program with
UNICEF UNICEF ( ), originally the United Nations International Children's Emergency Fund, officially United Nations Children's Fund since 1953, is an agency of the United Nations responsible for providing Humanitarianism, humanitarian and Development a ...
to donate its new drug Mectizan to "all that need it for as long as needed" in an effort to combat
onchocerciasis Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm ''Onchocerca volvulus''. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindne ...
, also known as river blindness, primarily in Africa. Up to that point, the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
had fought the disease through the use of
insecticides Insecticides are pesticides used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. The major use of insecticides is in agriculture, but they are also used in home and garden settings, in ...
to lower the population of its primary vector, the
Black Fly A black fly or blackfly (sometimes called a buffalo gnat, turkey gnat, or white socks) is any member of the family Simuliidae of the Culicomorpha infraorder. It is related to the Ceratopogonidae, Chironomidae, and Thaumaleidae. Over 2,200 s ...
. However, when studies in the 1980s showed how effective the drug was at treating and preventing the disease, the WHO agreed to use it instead of its previous strategies. Merck's involvement is considered a key factor in the success against the disease all over the world,Onchocerciasis: Africa's victory over river blindness
Africa Recovery, Vol. 17 No. 1 (May 2003), p. 6
and the decision to donate the entirety of the drug to all those in need of it is used as part of the Mectizan Donation Program that covers countries such as Yemen and African countries. More than 700 million people have been treated since the inception of the program with 80 million people still undergoing treatment in Africa, Latin America, and Yemen. Blindness caused by onchocerciasis is decreasing, and there are regions of Latin America and Africa that have been shown to have eliminated the disease altogether.


Lawsuits and controversies


Vioxx

In 1999, the
U.S. Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food ...
(FDA) approved Vioxx (known generically as
rofecoxib Rofecoxib is a COX-2-selective nonsteroidal anti-inflammatory drug (NSAID). It was marketed by Merck & Co. to treat osteoarthritis, rheumatoid arthritis, juvenile rheumatoid arthritis, acute pain conditions, migraine, and dysmenorrhea. Rofecoxib ...
), a Merck product for treating
arthritis Arthritis is a general medical term used to describe a disorder that affects joints. Symptoms generally include joint pain and stiffness. Other symptoms may include redness, warmth, Joint effusion, swelling, and decreased range of motion of ...
. Vioxx was designed as a selective inhibitor of the enzyme
cyclooxygenase-2 Cyclooxygenase-2 (COX-2), also known as prostaglandin-endoperoxide synthase 2 ( HUGO PTGS2), is an enzyme that in humans is encoded by the ''PTGS2'' gene. In humans it is one of three cyclooxygenases. It is involved in the conversion of arachid ...
. Such compounds were expected to cause less gastrointestinal bleeding than older
anti-inflammatory Anti-inflammatory is the property of a substance or treatment that reduces inflammation, fever or swelling. Anti-inflammatory drugs, also called anti-inflammatories, make up about half of analgesics. These drugs reduce pain by inhibiting mechan ...
drugs such as
naproxen Naproxen, sold under the brand name Aleve among others, is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, menstrual cramps, and inflammatory diseases such as rheumatoid arthritis, gout and fever. It is taken orally. It ...
, which were associated with 20,000 hospitalizations and 2000 deaths each year. Vioxx became one of the most prescribed drugs in history. Thereafter, studies by Merck and by others found an increased risk of heart attack associated with
Vioxx Rofecoxib is a COX-2-selective nonsteroidal anti-inflammatory drug ( NSAID). It was marketed by Merck & Co. to treat osteoarthritis, rheumatoid arthritis, juvenile rheumatoid arthritis, acute pain conditions, migraine, and dysmenorrhea. Rofec ...
use when compared with naproxen. Merck adjusted the labeling of Vioxx to reflect possible cardiovascular risks in 2002. On September 23, 2004, Merck received information about results from a
clinical trial Clinical trials are prospective biomedical or behavioral research studies on human subject research, human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel v ...
it was conducting that included findings of increased risk of heart attacks among Vioxx users who had been using the medication for over eighteen months. On September 28, 2004, Merck notified the FDA that it was voluntarily withdrawing Vioxx from the market, and it publicly announced the withdrawal on September 30. An analysis for the period 1999–2004, based on U.S. Medical Expenditure Survey data, reported that Vioxx was associated with 46,783 heart attacks, and along with the other popular
COX-2 inhibitor Cyclooxygenase-2 inhibitors (COX-2 inhibitors), also known as coxibs, are a type of nonsteroidal anti-inflammatory drug (NSAID) that directly target cyclooxygenase-2 (COX-2), an enzyme responsible for inflammation and pain. Targeting selectivity ...
Celebrex, an estimated 26,603 deaths from both. About 50,000 people sued Merck, claiming they or their family members had suffered medical problems such as heart attacks or strokes after taking Vioxx. In November 2007, Merck agreed to pay $4.85 billion to settle most of the pending Vioxx lawsuits. The settlement required that claimants provide medical and pharmacy records confirming the occurrence of a heart attack, ischemic stroke, or sudden cardiac death; the receipt of at least 30 Vioxx pills within 60 days prior to the injury or death; and confirmation of Vioxx being used within 14 days of the Vioxx-related event. The settlement was generally viewed by industry analysts and investors as a victory for Merck, considering that original estimates of Merck's liability reached between $10 billion and $25 billion. As of mid-2008, when the plaintiff class had reached the threshold percentage required by Merck to go through with the settlement, plaintiffs had prevailed in only three of the twenty cases that had reached juries, all with relatively small awards. Merck has refused to consider compensation for Vioxx victims and their families outside the US. This is particularly true in the UK where there are at least 400 victims and the legal protection afforded to the victims and their families is particularly weak. According to internal e-mail traffic released at a later lawsuit, Merck had a list of doctors critical of Vioxx to be "neutralized" or "discredited". "We may need to seek them out and destroy them where they live," wrote an employee. A Stanford Medical School professor said that Merck was engaged in intimidation of researchers and infringement upon
academic freedom Academic freedom is the right of a teacher to instruct and the right of a student to learn in an academic setting unhampered by outside interference. It may also include the right of academics to engage in social and political criticism. Academic ...
. On May 20, 2008, Merck settled for $58 million with 30 states alleging that Merck engaged in deceptive marketing tactics to promote
Vioxx Rofecoxib is a COX-2-selective nonsteroidal anti-inflammatory drug ( NSAID). It was marketed by Merck & Co. to treat osteoarthritis, rheumatoid arthritis, juvenile rheumatoid arthritis, acute pain conditions, migraine, and dysmenorrhea. Rofec ...
. All its new television pain-advertisements must be vetted by the Food and Drug Administration and changed or delayed upon request until 2018.


Fosamax

Fosamax (
alendronate Alendronic acid, sold under the brand name Fosamax among others, is a bisphosphonate medication used to treat osteoporosis and Paget's disease of bone. It is taken by mouth. Use is often recommended together with vitamin D, calcium supplementa ...
) is a
bisphosphonate Bisphosphonates are a class of drugs that prevent the loss of bone density, used to treat osteoporosis and similar diseases. They are the most commonly prescribed to treat osteoporosis. Evidence shows that they reduce the risk of fracture in ...
used for the treatment of post-menopausal osteoporosis and for the prevention of skeletal problems in certain cancers. The American College of Clinical Endocrinology, the
American College of Obstetricians and Gynecologists The American College of Obstetricians and Gynecologists (ACOG) is a professional association of physicians specializing in obstetrics and gynecology in the United States. Several Latin American countries are also represented within Districts of ...
, the
North American Menopause Society The Menopause Society, founded in 1989, is a nonprofit, multidisciplinary organization with the mission of promoting the health and quality of life of women during midlife and beyond through an understanding of menopause and healthy aging. Base ...
and the UK National Osteoporosis Guideline Group recommend alendronate and certain other bisphosphonates as first line treatments for post-menopausal osteopotosis. Long-term treatment with bisphosponates produces anti-fracture and bone mineral density effects that persist for 3–5 years after an initial 3–5 years of treatment. Alendronate reduces the risk of hip, vertebral, and wrist fractures by 35-39%. In December 2013, Merck agreed to pay a total of $27.7 million to 1,200 plaintiffs in a class action lawsuit alleging that the company's osteoporosis drug had caused them to develop osteonecrosis of the jaw. Prior to the settlement, Merck had prevailed in 3 of 5 so-called bellwether trials. Approximately 4000 cases still await adjudication or settlement as of August 2014. There have also been thousands of lawsuits alleging that Fosamax increased the risk of thigh-bone fractures. In March 2022, Merck defeated approximately 500 lawsuits over Fosamax in New Jersey when
U.S. District Judge The United States district courts are the trial courts of the United States federal judiciary, U.S. federal judiciary. There is one district court for each United States federal judicial district, federal judicial district. Each district cov ...
Freda L. Wolfson ruled that the plaintiffs' lawsuit was preempted by federal law. On September 20, 2024, the
United States Court of Appeals for the Third Circuit The United States Court of Appeals for the Third Circuit (in case citations, 3d Cir.) is a United States federal court, federal court with appellate jurisdiction over the United States district court, district courts for the following United Sta ...
overturned that decision, holding that federal law did not block plaintiffs' state law claims against Merck over Fosamax. As of June 30, 2024, about 3,115 lawsuits over Fosamax were still pending against Merck in both federal and state courts in the United States.


Medicaid overbilling

A fraud investigation by the
United States Department of Justice The United States Department of Justice (DOJ), also known as the Justice Department, is a United States federal executive departments, federal executive department of the U.S. government that oversees the domestic enforcement of Law of the Unite ...
began in 2000 when allegations were brought in two separate lawsuits filed by whistleblowers under the
False Claims Act False or falsehood may refer to: * False (logic), the negation of truth in classical logic * Lie or falsehood, a type of deception in the form of an untruthful statement * False statement, aka a falsehood, falsity, misstatement or untruth, is a st ...
. They alleged that Merck failed to pay proper rebates to
Medicaid Medicaid is a government program in the United States that provides health insurance for adults and children with limited income and resources. The program is partially funded and primarily managed by U.S. state, state governments, which also h ...
and other health care programs and paid illegal remuneration to health care providers. On February 7, 2008, Merck agreed to pay more than $650 million to settle charges that it routinely overbilled Medicaid for its most popular medicines. The settlement was one of the largest pharmaceutical settlements in history. The federal government received more than $360 million, plus 49 states and Washington, DC, received over $290 million. One whistleblower received a $68 million reward. Merck made the settlement without an admission of liability or wrongdoing.


"Merck" name legal dispute

In 191 of 193 countries, the original Merck company, the
Merck Group The Merck Group, branded and commonly known as Merck, is a German Multinational corporation, multinational science and technology company headquartered in Darmstadt, with about 60,000 employees and a presence in 66 countries. The group include ...
of Darmstadt, owns the rights to the "Merck" name. In the United States and Canada, the company trades under the name EMD (an abbreviation of Emanuel Merck, Darmstadt), its legal name here says ''Merck KGaA, Darmstadt, Germany'', and instead of "Merck Group", the "EMD Group" name is used. In the United States and Canada, Merck & Co. holds the rights to the trademark "Merck", while in the rest of the world the company trades under the name MSD (an abbreviation of Merck, Sharp & Dohme) and its legal name says here ''Merck Sharp & Dohme LLC., a subsidiary of Merck & Co., Inc. Kenilworth, NJ, USA''. In 2015 the
Merck Group The Merck Group, branded and commonly known as Merck, is a German Multinational corporation, multinational science and technology company headquartered in Darmstadt, with about 60,000 employees and a presence in 66 countries. The group include ...
adopted a new logo and said it will be "much more aggressive" about protecting the brand of "the real Merck". Merck of Darmstadt has initiated litigation against its former subsidiary, Merck & Co. (MSD) of Kenilworth, in several countries over infringing use of the Merck name. In 2016, the
High Court of Justice The High Court of Justice in London, known properly as His Majesty's High Court of Justice in England, together with the Court of Appeal (England and Wales), Court of Appeal and the Crown Court, are the Courts of England and Wales, Senior Cour ...
in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
ruled that MSD had breached an agreement with its former parent company and that only Merck of Darmstadt is entitled to use the Merck name in the United Kingdom. The judge also held that MSD's use of "Merck" as part of branding on its global websites were directed to the UK and infringed Merck's trade mark rights in the UK. In response to the ruling, MSD initiated counter-litigation in the United States in January 2016 by filing a federal lawsuit which accused its former parent company of "infringing on its trademark" through actions that included the increased usage of "Merck KGaA" and "MERCK" in branding in the US as well as on its social media presence. Further Merck & Co. has also accused the Merck Group of federal trademark dilution, unfair competition, false advertising, deceptive trade practices, breach of contract, and
cybersquatting Cybersquatting (also known as domain squatting) is the practice of registering, trafficking in, or using an Internet domain name, with a bad faith intent to profit from the goodwill of a trademark belonging to someone else. The term is derived ...
. The case came to a head when a research scientist believed he was communicating with Merck & Co regarding a research grant in oncology, when in fact he was talking with the Merck Group. As a result, Merck & Co. asked the federal court to stop the Merck Group from using "Merck" on any products or marketing materials in the United States. As a direct result, Merck & Co is seeking "''all monetary gains, profits, and advantages''" made by the Merck Group and three-times the damage, plus additional punitive damages. In April 2020, in the course of litigation of Merck against MSD in Switzerland, the
Federal Supreme Court of Switzerland The Federal Supreme Court of Switzerland ( ; ; ; ; sometimes the Swiss Federal Tribunal) is the supreme court of the Swiss Confederation and the head of the Swiss judiciary. The Federal Supreme Court is headquartered in the Federal Courth ...
ruled that MSD's use of the "Merck" brand in its global websites could, absent
geotargeting In geomarketing and internet marketing, geotargeting is the method of delivering different content to visitors based on their geolocation. This includes country, region/state, city, metro code/ zip code, organization, IP address, ISP, or other c ...
mechanisms, have "commercial effect" in Switzerland and could therefore violate Merck's rights (if any) to the "Merck" brand in Switzerland.


Tax fraud

In 2007, Merck paid $2.3 billion to settle allegations of offshore tax fraud between 1993 and 2001.


Propecia

In 2021, an investigation by
Reuters Reuters ( ) is a news agency owned by Thomson Reuters. It employs around 2,500 journalists and 600 photojournalists in about 200 locations worldwide writing in 16 languages. Reuters is one of the largest news agencies in the world. The agency ...
revealed that Merck's baldness drug Propecia caused persistent sexual dysfunction in men. The drug has been linked to over 700 incidences of suicidal thoughts and 110 deaths. Merck has been receiving reports since 1998, but never included the risks on the label. In 2015, Merck was sued by consumer-rights law firm Hagens Berman over a wrongful death linked to Propecia.


Environmental violations

Merck & Co. once used
methylene chloride Dichloromethane (DCM, methylene chloride, or methylene bichloride) is an organochlorine compound with the formula . This colorless, volatile liquid with a chloroform-like, sweet odor is widely used as a solvent. Although it is not miscible with ...
, an animal carcinogen on the
United States Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on De ...
's list of pollutants, as a solvent in some of its manufacturing processes. Merck chemists and engineers subsequently replaced the compound with others having fewer negative environmental effects. Merck has also modified its equipment to protect the environment, installing a distributed control system that coordinates chemical reactions more efficiently and expedites manufacturing by 50 percent, eliminating the need for the disposal and storage of harmful waste. Biological oxygen demand has also been reduced. In 2011, Merck paid a $1.5 million civil penalty to settle alleged violations of federal environmental laws at its pharmaceutical manufacturing facilities in Riverside, Pennsylvania and
West Point, Pennsylvania West Point is an unincorporated community in Upper Gwynedd Township, Montgomery County, Pennsylvania, United States. Zacharias Creek starts here and flows west into the Skippack Creek, a tributary of the Perkiomen Creek. Merck & Co. has a fac ...
.


Public-private engagement


Conferences

Merck was a Conference Supporter for the Virtual
ISPOR ISPOR—The Professional Society for Health Economics and Outcomes Research, also known as ISPOR (and formerly as the International Society for Pharmacoeconomics and Outcomes Research) is a global, nonprofit 501(c)(3) public organization for ed ...
Asia Pacific conference in September 2020.


Political lobbying

Merck is a contributing member of AcademyHealth, a
health research Public health is "the science and art of preventing disease, prolonging life and promoting health through the organized efforts and informed choices of society, organizations, public and private, communities and individuals". Analyzing the de ...
advocacy network that also includes
government agencies A government agency or state agency, sometimes an appointed commission, is a permanent or semi-permanent organization in the machinery of government (bureaucracy) that is responsible for the oversight and administration of specific functions, ...
,
universities A university () is an educational institution, institution of tertiary education and research which awards academic degrees in several Discipline (academia), academic disciplines. ''University'' is derived from the Latin phrase , which roughly ...
,
pharmaceutical companies The pharmaceutical industry is a Medicine, medical industry that discovers, develops, produces, and markets pharmaceutical goods such as medications and medical devices. Medications are then administered to (or Self-medicate, self-administered b ...
and lobbying groups.


References


External links

* * {{DEFAULTSORT:Merck and Co. Biotechnology companies of the United States Pharmaceutical companies of the United States Veterinary companies of the United States Vaccine producers Multinational companies headquartered in the United States Pharmaceutical companies based in New Jersey Companies based in Union County, New Jersey Kenilworth, New Jersey American companies established in 1891 Pharmaceutical companies established in 1891 1891 establishments in New Jersey Companies in the Dow Jones Industrial Average Companies in the Dow Jones Global Titans 50 Companies listed on the New York Stock Exchange Bayer Schering-Plough