2024-12-31T08:04:55+0000

You should not take the herbal supplements St John s Wort, ginkgo, or resveratrol or certain over the counter medicines such as cimetidine until you talk to your doctor. The active ingredient in Viagra, sildenafil, belongs to a group of medicines called phosphodiesterase type 5 inhibitors. Possible additive vasorelaxation, leading to low blood pressure.