What is "thioridazine"

n. An antipsychotic drug used in the treatment of anxiety, depression and autism

n. a tranquilizer (trade name Mellaril) used to treat schizophrenia and other psychotic disorders [syn: Mellaril]

Thioridazine (Mellaril or Melleril) is a piperidine typical antipsychotic drug belonging to the phenothiazine drug group and was previously widely used in the treatment of schizophrenia and psychosis; the branded product was withdrawn worldwide in 2005 because it caused severe cardiac arrhythmias, however, generic versions are available in the US.

In older references, it is sometimes described as atypical, but more recently it is usually described as typical, with the term "atypical" usually reserved for agents showing D selectivity or serotonin antagonism. The atypicality of second generation agents is not clearly defined. Some believe it's low D affinity, quick dissociation, 5-HT receptor antagonism, or all of the above. Its perceived atypical effects (namely its comparatively low propensity for extrapyramidal side effects) are likely the result of its potent anticholinergic effects.