chlorpromazine(n = noun.artifact) thorazine - a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer;
is a kind of antipsychotic, antipsychotic agent, antipsychotic drug, major tranquilizer, major tranquilliser, major tranquillizer, neuroleptic, neuroleptic agent, neuroleptic drug, phenothiazine, thiodiphenylamine

   a drug derived from phenothiazine and used as a sedative and tranquilizer. [WordNet 1.5]

chlorpromazine, n. Pharm. a drug used as a sedative and to control nausea and vomiting.

Etymology:
F (as CHLORO-, PROMETHAZINE)