Sildenafil, the active ingredient in Viagra , is classified as a prescription-only medication by the FDA in the U.S..
Obtaining sildenafil from unregulated sources often leads to using counterfeit or dangerous products.
There is a notable exception. You can legally purchase Viagra Connect (50mg sildenafil) over the counter at pharmacies after a brief consultation with a pharmacist. However, higher doses or standard sildenafil still require a prescription. Critical Health and Safety Risks
Some pills purchased without a prescription contain inconsistent amounts, while others may cause priapism (a painful erection lasting 4+ hours that causes permanent damage).