Ginkgo Biloba

Some people use this herb to help with or prevent high blood pressure, dementia, ringing in the ears (tinnitus), and other conditions, but there’s no research that shows it does any of that. It can weaken the effect of drugs used to control seizures, including carbamazepine (Carbatrol, Equetro, and Tegretol), and valproic acid (Depakene, Depakote, and Stavzor).