Methdilazine Hydrochloride and its Impurities

Methdilazine Hydrochloride is used in the treatment of various dermatoses to relieve pruritus. It is a phenothiazine compound with antihistaminic activity.Reference standards of Methdilazine Hydrochloride API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.