Clopenthixol (Sordinol), also known as clopentixol, is a

typical antipsychotic Typical antipsychotics (also known as major tranquilizers, and first generation antipsychotics) are a class of antipsychotic drugs first developed in the 1950s and used to treat psychosis (in particular, schizophrenia). Typical antipsychotics m ...

drug A drug is any chemical substance other than a nutrient or an essential dietary ingredient, which, when administered to a living organism, produces a biological effect. Consumption of drugs can be via insufflation (medicine), inhalation, drug i ...

of the

thioxanthene Thioxanthene is a chemical compound in which the oxygen atom in xanthene is replaced with a sulfur atom. It is also related to phenothiazine. Several of its chemical derivative, derivatives are used as typical antipsychotics in the treatment of sc ...

class. It was introduced by

Lundbeck H. Lundbeck A/S, commonly referred to as Lundbeck, is a Denmark, Danish international pharmaceutical company engaged in the research, development, manufacturing, marketing and sale of pharmaceuticals across the world. The company’s products ar ...

in 1961. Clopenthixol is a mixture of '' cis'' and ''

trans Trans- is a Latin prefix meaning "across", "beyond", or "on the other side of". Used alone, trans may refer to: Sociology * Trans, a sociological term which may refer to: ** Transgender, people who identify themselves with a gender that di ...

isomer In chemistry, isomers are molecules or polyatomic ions with identical molecular formula – that is, the same number of atoms of each element (chemistry), element – but distinct arrangements of atoms in space. ''Isomerism'' refers to the exi ...

Zuclopenthixol Zuclopenthixol (brand names Cisordinol, Clopixol and others), also known as zuclopentixol, is a medication used to treat schizophrenia and other psychoses. It is classed, pharmacologically, as a typical antipsychotic. Chemically it is a thioxant ...

, the pure ''cis'' isomer, was later introduced by Lundbeck in 1962, and has been much more widely used. Both drugs are equally effective as antipsychotics and have similar

adverse effect An adverse effect is an undesired harmful effect resulting from a medication or other intervention, such as surgery. An adverse effect may be termed a "side effect", when judged to be secondary to a main or therapeutic effect. The term compli ...

profiles, but clopenthixol is half as active on a milligram-to-milligram basis and appears to produce more

sedation Sedation is the reduction of irritability or agitation by administration of sedative drugs, generally to facilitate a medical procedure or diagnostic procedure. Examples of drugs which can be used for sedation include isoflurane, diethyl ether, ...

in comparison. Clopenthixol is not approved for use in the United States.

References

External links

* Piperazines Chloroarenes Hydroxyethyl compounds Thioxanthene antipsychotics {{nervous-system-drug-stub