Definition of "promethazine"
promethazine
/pɹə(ʊ)ˈmɛθ.ə.ziːn/
noun
uncountable
(pharmacology) A first-generation H1 receptor antagonist derived from phenothiazine, used as antihistamine and antiemetic medication with strong sedative effects.
uncountable
(pharmacology) A first-generation H1 receptor antagonist derived from phenothiazine, used as antihistamine and antiemetic medication with strong sedative effects.