Topotecan hydrochloride, a topoisomerase I inhibitor, capable of inhibiting tumoral growth in animal models of retinoblastoma. Topotecan hydrochloride liposomes loaded CS/β-GP hydrogel could become a potential formulation for improving the antitumor efficacy of Topotecan hydrochloride. Topotecan hydrochloride is a pyranoindolizinoquinoline. It has a role as an antineoplastic agent and an EC 5.99.1.2 (DNA topoisomerase) inhibitor. It contains a topotecan.

Saikosaponin B1 may be as anti-schizophrenic candidate drugs, it can suppress the signal transduction after binding of EGF.