Bithionol

General information

Bithionol is a chlorinated bisphenol with antihelminthic properties. It is active against most trematodes and has been recommended as preferable to praziquantel in fascioliasis and paragonimiasis, proving both effective and well tolerated. Bithionol also has antibacterial properties and was for this reason included for a time in cosmetic formulations. However, when given topically it caused photosensitivity reactions, and this form of application has been abandoned.