Topotecan
Products Topotecan is commercially available in capsule form and as a lyophilizate (Hycamtin, generic). It has been approved in many countries since 1996. Structure and properties Topotecan (C23H23N3O5, Mr = 421.4 g/mol) is present in the drug as topotecan hydrochloride. It is a semisynthetic derivative of camptothecin, a plant alkaloid derived from the tree. Effects … Topotecan