If you use nitrate drugs to control chest pain (also known as angina), don't take Viagra. Since Viagra also reduces blood pressure, your blood pressure could suddenly drop to an ...

... drug for erectile dysfunction has been studied as much or has the same amount of real-world experience as Viagra since its ...

And no other therapy for ED has been studied as much or has the same amount of real-world experience as Viagra since its launch.

Since its approval, 23 million men have used Viagra worldwide. It is estimated that 100 million adult males suffer from erectile dysfunction due to a variety of causes including ...

It has been available on prescription in the UK since 1998. Viagra is the first oral pill to treat erectile dysfunction in men ...