Viagra inhibits PDE5 and acts as a vasodilator (something that dilates blood vessels and increases blood flow). A single tablet of sildenafil can do that — typically, one dose is all that’s required ...

Like other prescription medicines, Viagra and its generic form, sildenafil, work best when you take them under the right conditions. From your mental state to your eating habits, a range of factors ...

This article was reviewed by Lynn Marie Morski, MD, JD. Viagra® may be known as the “little blue pill,” but there’s nothing little about its ability to help men struggling with ED. Over the years, ...

Viagra is a helpful medication for men dealing with erection issues. If you’re considering Viagra, you might be wondering how long it takes to work and what you can expect. Viagra works by increasing ...

Viagra lasts for about four hours, but it can last longer in some people. Viagra should be taken 30 minutes to an hour before sexual activity. Older age or certain drugs can make Viagra stay in your ...