What are blue pills for ED?
"Blue pills" is the name many men use for sildenafil, the active ingredient in Viagra, used to treat erectile dysfunction.
Sildenafil increases blood flow to the penis so you can get and keep an erection. It is taken around an hour before sex and stays effective for up to 5 hours. It only works when you are sexually aroused, and it does not increase sex drive.
Do not take sildenafil if you take nitrates or poppers.
You can find more information about erectile dysfunction on our erectile dysfunction information page.