Torr one kind of compound tropisetron hydrochloride and its preparation

The present invention relates to the field of medicine, particularly, to a tropisetron hydrochloride trihydrate and its preparation, the structural formula of formula (I) below; The present invention also relates to tropisetron hydrochloride trihydrate of the dosage form, the pharmaceutical dosage form composition is an injectable formulation. Confirmed by the stability test, the preparation of the present invention obtained good stability tropisetron hydrochloride trihydrate tropisetron, high bioavailability, suitable for clinical application.