Oxomemazine Hydrochloride and its Impurities

Oxomemazine Hydrochloride is an antihistamine and anticholinergic of the phenothiazine chemical class for the treatment of cough. It is a medicine available in a number of countries worldwide. Reference standards of Oxomemazine Hydrochloride API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.