promethazine
Syllables: pro·meth·a·zine/pɹəʊˈmɛ.θə.ziːn/US/pɹoʊˈmɛ.θəˌzin/
promethazine noun: a first-generation H₁ receptor antagonist derived from phenothiazine, used as antihistamine and antiemetic medication with strong sedative effects.

Noun
promethazine (uncountable)
- A first-generation H₁ receptor antagonist derived from phenothiazine, used as antihistamine and antiemetic medication with strong sedative effects.
- For quotations using this term, see Citations:promethazine.
- Synonyms:
- Phenergan, pro
Synonyms of promethazine
- Phenergan
- pro
Origin of promethazine
From pro(p)- + meth- + (phenothi)azine.
Words formed from promethazine
Questions about promethazine
- What does promethazine mean?
- Promethazine means a first-generation H₁ receptor antagonist derived from phenothiazine, used as antihistamine and antiemetic medication with strong sedative effects.
- What part of speech is promethazine?
- Promethazine is a noun.
- How do you pronounce promethazine?
- Promethazine is pronounced /pɹəʊˈmɛ.θə.ziːn/ (UK).
Words near promethazine in the dictionary
Source and license
Adapted from Wiktionary: promethazine (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-promethazine.wav.
Cite this entry: “promethazine.” Word.ws, https://word.ws/promethazine. Based on Wiktionary, CC BY-SA 4.0.
