Levomepromazine Hydrochloride and its Impurities

Levomepromazine Hydrochloride, also known as methotrimeprazine, is a phenothiazine neuroleptic drug. It is also used at lower doses for the treatment of nausea and insomnia. Reference standards of Levomepromazine Hydrochloride API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.