Only abstract available: chronic inorganic Hg associated with demyelinating sensorimotor polyneuropathy. The exposure in this case study was through herbal supplements.
Licorice root extract, also known as glycyrrhizic acid, found to quickly reduce endogenous Testosterone production in women. The proposed mechanism is via inhibition of 17-hydroxysteroid dehydrogenase and 17-20 Lyase. This is a good adjuvant in the treatment of PCOS.