chlorpromazine

C3H4L1O1R1P3R1O1M3A1Z10I1N1E1
UK/klɔːˈpɹəʊ.məz.ɪn/UK/klɔːˈpɹəʊ.məz.iːn/US/klɔɹˈpɹɑm.əˌziːn/US/klɔɹˈpɹoʊ.məˌziːn/

noun

A synthetic antipsychotic drug, with the chemical formula C₁₇H₁₉ClN₂S.

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Meanings

nounchlorpromazine (countable and uncountable, plural chlorpromazines, abbreviation CPZ)

plural chlorpromazines · abbreviation CPZ

  1. countableuncountablemedicineA synthetic antipsychotic drug, with the chemical formula C₁₇H₁₉ClN₂S.

    Chlorpromazine should be taken with caution in combination with barbiturates, sleeping pills, narcotics, or any other medication which may produce a depressive effect. Avoid alcohol.

    1979, Harold M. Silverman, Gilbert I. Simon, “Chlorpromazine”, in The Pill Book […] , 1st edition, New York: Bantam Books, →ISBN, page 56
    1 more example

    In the early 1950s two French physicians, J. Delay and P. Deniker, noted the remarkable calming effects of a new drug, chlorpromazine, which was initially tested as an agent to be given to patients prior to major surgery to relax them.

    2001, Leslie Iversen, Drugs: A Very Short Introduction, Oxford, page 59

    Synonyms: aminazine, Largacti, Thorazine

Synonyms & antonyms

nounA synthetic antipsychotic drug, with the chemical formula C₁₇H₁₉ClN₂S.

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More synonyms by meaning

nouna drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer

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Broader
major tranquilizermajor tranquillizermajor tranquilliserphenothiazinethiodiphenylamine

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Frenchchloropromazine
  2. Frenchchloropromazine
  3. Englishchlorpromazine

Borrowed from French chloropromazine. By surface analysis, chlor- + promazine. First attested in the 1950s.

Full word history & related roots →

Translations

French chlorpromazine
  • chlorpromazinesynthetic drug
German Chlorpromazin
  • Chlorpromazinsynthetic drug
Hungarian klórpromazin
  • klórpromazinsynthetic drug
Italian clorpromazina
  • clorpromazinasynthetic drug
Portuguese cloropromazina, clorpromazina
  • cloropromazinasynthetic drug
  • clorpromazinasynthetic drug
Spanish clorpromazina
  • clorpromazinasynthetic drug
Cite this entry
APA

chlorpromazine. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/chlorpromazine

MLA

“chlorpromazine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/chlorpromazine. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “chlorpromazine,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/chlorpromazine.

Source: chlorpromazine on Wiktionary, CC BY-SA 4.0.