The pharmacological differentiation of promethazine hydrochloride (phenergan) from iso-promethazine hydrochloride.
D018926:Anti-Allergic Agents; D014150:Antipsychotic Agents; D006634:Histamine H1 Antagonists; D010640:Phenothiazines / Q000031:analogs & derivatives; D011398:Promethazine
D018926:Anti-Allergic Agents; D014150:Antipsychotic Agents; D006634:Histamine H1 Antagonists; D010640:Phenothiazines; D011398:Promethazine; C031637:phenothiazine
ANTIHISTAMINICS; PHENOTHIAZINE/derivatives