What Is Ondansetron HCl?

Ondansetron hydrochloride, medicine, the main ingredient is 1,2,3,9-tetrahydro-9-methyl-3-[(2-methylimidazol-1-yl) methyl-4-oxocarbazole Hydrochloride dihydrate. Calculated based on the dry product, C18H19N3 · HCl should be 98.0-102.%, It is an antiemetic, used for nausea and vomiting caused by radiotherapy and chemotherapy.