Drug Groups

approved

Description

A dopamine D2-receptor antagonist. It has been used therapeutically as an antidepressant, antipsychotic, and as a digestive aid. (From Merck Index, 11th ed)

Indication

Sulpiride is indicated for the treatment of schizophrenia.

Pharmacology

Sulpiride is a substituted benzamide derivative and a selective dopamine D2 antagonist with antipsychotic and antidepressant activity. Other benzamide derivatives include metoclopramide, tiapride, and sultopride.

Toxicity

Sulpiride has a relatively low order of acute toxicity. Substantial amounts may cause severe but reversible dystonic crises with torticollis, protrusion of the tongue, and/or trism. In some cases all the classical symptoms typical of severe Parkinson's Disease may be noted; in others, over-sedation/coma may occur.

Affected Organisms

Absorption

Sulpiride is absorbed slowly from the gastrointestinal tract. Its oral bioavailability is only 25 to 35% with marked interindividual differences.

Half Life

6 to 8 hours

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