This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The Viagra (sildenafil citrate) ads that seem ...

Erectile dysfunction meds, like Viagra and Cialis, can help you get and keep an erection. However, each has different side effects, dosage schedules, and other factors. Here, we look at how they stack ...

Although Viagra is effective for most guys with EDit’s important to make sure you’re taking the right dose. Too low of a Viagra dosage and your arousals may not be as firm or reliable as they could be ...

Sildenafil citrate, or simply sildenafil, is the active ingredient in the brand-name drug Viagra. Sildenafil is known as generic Viagra because retailers do not sell it under the Viagra brand name.

Taking Viagra with nitrate drugs or guanylate cyclase (GC) stimulators isn’t safe because the combination can cause dangerously low blood pressure. Drinking alcohol while taking Viagra can also lower ...