Trenbolone Enanthate
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Trenbolone enanthate, known by the nickname Trenabol, is a
synthetic Synthetic may refer to: Science * Synthetic biology * Synthetic chemical or compound, produced by the process of chemical synthesis * Synthetic elements, chemical elements that are not naturally found on Earth and therefore have to be created in ...
and injected
anabolic–androgenic steroid Anabolic steroids, also known as anabolic-androgenic steroids (AAS), are a class of drugs that are structurally related to testosterone, the main male sex hormone, and produce effects by binding to the androgen receptor (AR). Anabolism, Anaboli ...
(AAS) and a
derivative In mathematics, the derivative is a fundamental tool that quantifies the sensitivity to change of a function's output with respect to its input. The derivative of a function of a single variable at a chosen input value, when it exists, is t ...
of
nandrolone Nandrolone, also known as 19-nortestosterone, is an endogenous androgen. It is also an anabolic steroid (AAS) which is medically used in the form of esters such as nandrolone decanoate (brand name Deca-Durabolin) and nandrolone phenylpropionate ...
which was never marketed. It is the C17β
enanthate Enanthic acid, also called heptanoic acid, is an organic compound composed of a seven-carbon chain terminating in a carboxylic acid functional group. It is a colorless oily liquid with an unpleasant, rancid odor. It contributes to the odor of som ...
ester In chemistry, an ester is a compound derived from an acid (either organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group () of that acid is replaced by an organyl group (R). These compounds contain a distin ...
and a long-acting
prodrug A prodrug is a pharmacologically inactive medication or compound that, after intake, is metabolized (i.e., converted within the body) into a pharmacologically active drug. Instead of administering a drug directly, a corresponding prodrug can be ...
of
trenbolone Trenbolone is an androgen and anabolic steroid (AAS) of the nandrolone group which itself was never marketed. Trenbolone ester prodrugs, including trenbolone acetate (brand names Finajet, Finaplix, others) and trenbolone hexahydrobenzylcarbonat ...
. Trenbolone enanthate was never approved for
medical 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, ...
or veterinary use but is used in
scientific research The scientific method is an empirical method for acquiring knowledge that has been referred to while doing science since at least the 17th century. Historically, it was developed through the centuries from the ancient and medieval world. The ...
and has been sold on the
internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
black market A black market is a Secrecy, clandestine Market (economics), market or series of transactions that has some aspect of illegality, or is not compliant with an institutional set of rules. If the rule defines the set of goods and services who ...
as a designer steroid for
bodybuilder Bodybuilding is the practice of progressive resistance exercise to build, control, and develop one's muscles via hypertrophy. An individual who engages in this activity is referred to as a bodybuilder. It is primarily undertaken for aesthetic ...
s and
athlete An athlete is most commonly a person who competes in one or more sports involving physical strength, speed, power, or endurance. Sometimes, the word "athlete" is used to refer specifically to sport of athletics competitors, i.e. including track ...
s.


Side effects

Trenbolone enanthate being a potent
anabolic steroid Anabolic steroids, also known as anabolic-androgenic steroids (AAS), are a class of drugs that are structurally related to testosterone, the main male sex hormone, and produce effects by binding to the androgen receptor (AR). Anabolism, Anaboli ...
has several potential side effects stemming from its particularly strong
androgen An androgen (from Greek ''andr-'', the stem of the word meaning ) is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This includes ...
ic properties and its regulation on human
hormone A hormone (from the Ancient Greek, Greek participle , "setting in motion") is a class of cell signaling, signaling molecules in multicellular organisms that are sent to distant organs or tissues by complex biological processes to regulate physio ...
s.


Psychological

Anabolic-androgenic steroid Anabolic steroids, also known as anabolic-androgenic steroids (AAS), are a class of drugs that are structurally related to testosterone, the main male sex hormone, and produce effects by binding to the androgen receptor (AR). Anabolism, Anaboli ...
(AAS) users report significant psychological changes. Fluctuation in
testosterone Testosterone is the primary male sex hormone and androgen in Male, males. In humans, testosterone plays a key role in the development of Male reproductive system, male reproductive tissues such as testicles and prostate, as well as promoting se ...
, a key AAS, affects the brain's structure and function, potentially leading to mood disorders and aggressive behavior. Trenbolone enanthate users have reported significant psychological changes, including increased aggression, mood instability, and impaired social interactions. Prolonged use of AAS may also lead to psychological dependence, with approximately 1/3 of users experiencing withdrawal symptoms upon cessation.


Reproductive health

Anabolic-androgenic steroids impact male
reproductive The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are al ...
health. Their misuse can lead to a condition known as anabolic steroid-induced hypogonadism (ASIH), where natural testosterone production is suppressed. The decreased testosterone production leads to decreased sperm production and can cause prolonged
infertility In biology, infertility is the inability of a male and female organism to Sexual reproduction, reproduce. It is usually not the natural state of a healthy organism that has reached sexual maturity, so children who have not undergone puberty, whi ...
even after stopping use. Chronic AAS use increases the risk of infertility due to its impact on hormonal balance, and some effects such as gynecomastia may not be reversible.


Androgenic

Trenbolone enanthate can include several
androgen An androgen (from Greek ''andr-'', the stem of the word meaning ) is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This includes ...
ic side effects such as increased body hair growth,
acne Acne ( ), also known as ''acne vulgaris'', is a long-term Cutaneous condition, skin condition that occurs when Keratinocyte, dead skin cells and Sebum, oil from the skin clog hair follicles. Typical features of the condition include comedo, ...
, and potential baldness in predisposed individuals.


Gynecomastia

Gynecomastia Gynecomastia (also spelled gynaecomastia) is the non-cancerous enlargement of one or both breasts in men due to the growth of breast tissue as a result of a hormone imbalance between estrogens and androgens. Updated by Brent Wisse (10 Novemb ...
is a condition that enlarges the breast tissue in males which is often produced as a side effect from the use of AAS. AAS can disrupt the normal balance of
estrogen Estrogen (also spelled oestrogen in British English; see spelling differences) is a category of sex hormone responsible for the development and regulation of the female reproductive system and secondary sex characteristics. There are three ...
and
testosterone Testosterone is the primary male sex hormone and androgen in Male, males. In humans, testosterone plays a key role in the development of Male reproductive system, male reproductive tissues such as testicles and prostate, as well as promoting se ...
in the body due to the increase in testosterone, which can be aromatized into estrogen. Elevated levels of estrogen in males can be linked to both weight gain and gynecomastia. While Trenbolone enanthate is known for not aromatizing into estrogen, trenbolone exhibits high
progestogen Progestogens, also sometimes written progestins, progestagens or gestagens, are a class of natural or synthetic steroid hormones that bind to and activate the progesterone receptors (PR). Progesterone is the major and most important progestoge ...
ic activity which is one of three natural developments of breast tissue in males, also leading to gynecomastia.


Primary uses


Bodybuilding

Trenbolone enanthate is renowned for its capacity to promote significant muscle growth and strength gain. Its
anabolic Anabolism () is the set of metabolic pathways that construct macromolecules like DNA or RNA from smaller units. These reactions require energy, known also as an endergonic process. Anabolism is the building-up aspect of metabolism, whereas catab ...
effects facilitate increased
protein synthesis Protein biosynthesis, or protein synthesis, is a core biological process, occurring inside cells, balancing the loss of cellular proteins (via degradation or export) through the production of new proteins. Proteins perform a number of critica ...
and hydrogen retention in muscle tissue. Trenbolone enanthate is also notable in the field of strength gain, with many users reporting marked improvements in their lifting capabilities in part due to the AAS' ability to increase red blood cell count and improve oxygenation of
muscle tissue Muscle is a soft tissue, one of the four basic types of animal tissue. There are three types of muscle tissue in vertebrates: skeletal muscle, cardiac muscle, and smooth muscle. Muscle tissue gives skeletal muscles the ability to contract. ...
along with the increase in testosterone. The compound is also often employed for its fat-burning properties. It enhances the
metabolic rate Metabolism (, from ''metabolē'', "change") is the set of life-sustaining chemical reactions in organisms. The three main functions of metabolism are: the conversion of the energy in food to energy available to run cellular processes; the co ...
and promotes the conversion of fat into energy, contributing to leaner muscle development during cutting cycles in body building.


Enhanced recovery

Trenbolone enanthate is a potential treatment for muscle and bone loss without adverse effects commonly associated with testosterone, such as
prostate The prostate is an male accessory gland, accessory gland of the male reproductive system and a muscle-driven mechanical switch between urination and ejaculation. It is found in all male mammals. It differs between species anatomically, chemica ...
growth or polycythemia. Trenbolone enanthate was hypothesized to offer benefits similar to selective
androgen receptor The androgen receptor (AR), also known as NR3C4 (nuclear receptor subfamily 3, group C, member 4), is a type of nuclear receptor that is activated by binding any of the androgenic hormones, including testosterone and dihydrotestosterone, in th ...
modulators( SARMs) due to its inability to convert into more potent
androgen An androgen (from Greek ''andr-'', the stem of the word meaning ) is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This includes ...
s in specific tissues.


Veterinary uses

In the veterinary field, Trenbolone enanthate has a history of use for increasing muscle mass in
livestock Livestock are the Domestication, domesticated animals that are raised in an Agriculture, agricultural setting to provide labour and produce diversified products for consumption such as meat, Egg as food, eggs, milk, fur, leather, and wool. The t ...
. This application is aimed at improving the lean muscle yield in animals prior to slaughter, enhancing the quality of meat production.


History

Trenbolone was first synthesized in 1963 by L. Velluz and his co-workers, it was originally developed for veterinary use to improve muscle mass and feed efficiency in cattle; however, trenbolone's potent anabolic and androgenic properties soon caught the attention of bodybuilders and athletes. The drug, however, has never been approved for human use, which has legal implications.


Legality

Trenbolone enanthate has never had regulatory approval for human use from any single health agency. Its legal status varies by country, however, it is commonly a
controlled substance A controlled substance is generally a drug or chemical whose manufacture, possession and use is regulated by a government, such as illicitly used drugs or prescription medications that are designated by law. Some treaties, notably the Sing ...
and non-prescribed use is highly illegal. For example, in the United States, the
Drug Enforcement Administration The Drug Enforcement Administration (DEA) is a Federal law enforcement in the United States, United States federal law enforcement agency under the U.S. Department of Justice tasked with combating illicit Illegal drug trade, drug trafficking a ...
(DEA) considers trenbolone and its
ester In chemistry, an ester is a compound derived from an acid (either organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group () of that acid is replaced by an organyl group (R). These compounds contain a distin ...
s (including its acetate and enanthate form) as Schedule III controlled substances similar to the likes of Australia where use of possession is a criminal offence. However, trenbolone is considered a
class C drug The Misuse of Drugs Act 1971 (c. 38) is an act of the Parliament of the United Kingdom. It represents action in line with treaty commitments under the Single Convention on Narcotic Drugs, the Convention on Psychotropic Substances, and the Uni ...
with no penalty for personal use or possession in the United Kingdom. The legal framework surrounding trenbolone and its derivatives is complex and not universally consistent, reflecting the substance's potent effects and the concerns over its potential misuse. Sporting organizations, including the
World Anti Doping Agency The World Anti-Doping Agency (WADA; , AMA) is an international organization co-founded by the governments of over 140 nations along with the International Olympic Committee based in Canada to promote, coordinate, and monitor the fight against d ...
(WADA), closely monitor the use of such substances, especially in competitive events like the
Olympics The modern Olympic Games (Olympics; ) are the world's preeminent international sporting events. They feature summer and winter sports competitions in which thousands of athletes from around the world participate in a variety of competit ...
, due to these concerns.


See also

* List of androgen esters § Trenbolone esters


References


Further reading

* {{Progesterone receptor modulators Abandoned drugs Androgen esters Anabolic–androgenic steroids Enanthate esters Estranes Ketones Sex hormone esters and conjugates Progestogens