ED is a common problem that affects men of all ages. In fact, research published by the National Institutes of Health (NIH) ...

The most common ED treatments — and the class of drugs Viagra belongs to — are PDE5 inhibitors (short for phosphodiesterase ...

As men age, the likelihood of erectile dysfunction (ED) becomes more common. At age 40, around about 4 in 10 men may struggle ...

If you’ve considered using Viagra®, you may have wondered, “Is Viagra addictive?” As it turns out, one of the most common ...

The main differences between Viagra and Cialis, aside from their chemical makeup, are how long it lasts in your system and the dosage. Keep in mind, though, that the effects for each pill vary by ...

Levitra, which was launched in April this year, belongs to the same class of drugs as Viagra, which is why many doctors thought there was no reason to try it as an alternative. Distributed by the ...

and many of these sites are actually selling counterfeit Viagra. The manufacturers of counterfeit pills likely have very little critical oversight and may be dishonest about the contents of the pills.