[per-fen-uh-zeen, -zin]
noun Pharmacology.
  1. a crystalline, water-insoluble powder, C21H26ClN3OS, used chiefly as a tranquilizer and in the treatment of intractable hiccoughs and nausea and vomiting.

Origin of perphenazine

First recorded in 1955–60; per- + phen(othi)azine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

perphenazine in Medicine


  1. A crystalline compound used as a tranquilizer especially in the treatment of psychosis and to prevent or alleviate nausea and vomiting.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.