from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A yellow organic compound, C12H9NS, used in insecticides, livestock anthelmintics, and dyes.
  • n. Any of a group of drugs derived from this compound and used in the treatment of psychiatric disorders, such as schizophrenia.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A polycyclic heterocycle consisting of two benzene rings fused to one of thiazine; thiodiphenylamine, dibenzothiazine
  • n. Any of a family of pharmaceuticals, derived from this compound, used to treat schizophrenia etc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a compound used primarily in veterinary medicine to rid farm animals of internal parasites


Sorry, no etymologies found.


  • The company had figured out how to extract the nucleus of methylene blue—which it called phenothiazine—in order to make new drugs.


  • Lack of gastrointestinal symptoms in the first 24 hours post-ingestion may have resulted from co-ingestion of a phenothiazine and benztropine.

    Colchicine Poisoning

  • The drug that helped Madame X keep her head while doctors chiseled away at her nose was a phenothiazine.


  • This chapter is going to be full of words like catecholamine and iminodibenzyl and phenothiazine.


  • Instead, they looked at another dye that they had on their shelves—summer blue, from which they derived iminodibenzyl, a molecule that, like phenothiazine, showed an affinity for nerve tissue and could be easily modified.


  • The psychiatric implications of such a drug were obvious, and soon French doctors were using a particularly strong phenothiazine—RP4560, or chlorpromazine—on their psychotic mostly schizophrenic patients.


  • Her voice blended in with the howls and shrieks of the senile old crones on the ward, the ones whom a phenothiazine cocktail never seemed to knock out and whose pleas to go home reverberated ceaselessly up and down the halls.

    Mortal Remains

  • In attempting to apply the tools of organic chemistry to the synthetic dye industry in the late nineteenth century, German scientists had synthesized phenothiazine in 1883 the parent compound of CPZ.

    The Mad Among Us

  • Two things about DMT caught my eye: Sometimes lunchtime lasted loger than expected—aberrant bad trips had been known to last four or five days—and unlike LSD, its effects were potentiated—intensified—by the administration of Thorazine and other phenothiazine tranquilizers.

    Over the Edge

  • Mainwaring dropped the Thorazine and switched to other phenothiazine tranquilizers—haloperidol, thioridazine, fluphenazine.

    Over the Edge


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