Breadcrumb Home > Thesaurus > P Synonyms of promethazine Find synonyms for: Noun 1. promethazine, Phenergan, antihistamine, antiemetic, antiemetic drug usage: antihistamine (trade name Phenergan) used to treat allergies; also an antiemetic used to treat motion sickness WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of promethazine (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: rosarium Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language