Viagra approval date?

When was Viagra (sildenafil) first approved?

Viagra (sildenafil) was approved by the U.S. Food and Drug Administration (FDA) on March 27, 1998. [1]

What was Viagra approved for?

Viagra was first approved to treat erectile dysfunction (ED) in adult men. [1]

Was Viagra approved anywhere else before 1998?

The first U.S. FDA approval date is March 27, 1998. [1]

Where can I verify the approval date?

You can confirm the FDA approval date using DrugPatentWatch.com. [1]

Sources
[1] https://www.drugpatentwatch.com/p/viagra/