etodroxizine and its Impurities

Etodroxizine (INN) (brand names Vesparax, Drimyl, Indunox, Isonox) is a first-generation antihistamine of the diphenylmethylpiperazine group which is used as a sedative/hypnotic drug in Europe and South Africa. Reference standards of Etodroxizine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.