Viagra has been available in the United States since it received FDA approval. Since then, it has been sold to millions of men suffering from erectile dysfunction. Pfizer has held the patent since 1996, and recently extended the patent for Viagra in the United States to 2019. Therefore, if you’re wondering when you’ll be able to purchase generic Viagra in the United States, it might be available sometime after 2019.

Currently, so-called generic forms of Viagra are sold is other areas of the world where the patent doesn’t apply, including China, South America, Egypt, India, and Mexico.

However, these pills are generally considered unsafe, because there is no way to verify the ingredients. Many websites sell useless generic forms of Viagra that don’t contain the same active ingredients. Until an FDA-approved generic form of Viagra in the US, you should only purchase authentic Viagra manufactured by Pfizer in the United States.