At least in human prostate cells xenografted into mice.
Kava is a tea with sedative properties commonly drank by people of different cultures of Polynesia. It’s psychoactive yet not physically addictive nor leads to dependency. Kava however must be made only from powderized root of specifically noble kava and peeled parts of its basal stump in order to avoid liver toxicity: https://www.reddit.com/r/Kava/comments/67n5jg/is_kava_bad_for_your_liver/
Anyone have experiences with kava in treating their symptoms?