Viagra might not work for all men with erectile dysfunction, especially if there's a hormonal or anatomical cause. Fortunately, this link explains other options.

Cialis, Viagra and Levitra are all supposed to do the same thing. Discover the subtle differences with this article, and talk to your doctor to find out which medication is right for you.

Curious about Viagra, but want to know more before you talk to your doctor? Get the quick answers to FAQ with these video clips, or select the text version.

Ever wonder how Viagra works its magic? This article gives an overview of male anatomy and physiology and how Viagra fits in. Don't be discouraged by the biochemical terms.

Before taking your first dose of Viagra, make sure to educate yourself about possible side effects, interactions and contraindications with this great overview.

Priapism, a long-lasting erection, can cause permanent damage to penile tissue. Fortunately, it's a relatively rare side effect of Viagra, except when it's used by men who don't really need it.

This article discusses reports of blindness in men who have taken Viagra. Could you be at risk? Learn more here.

Taking Viagra with party drugs like Ecstasy or crystal meth can lead to unsafe sexual practices and STDs like HIV.

Viagra has helped many older people regain their sex lives, but it doesn't protect against STDs like HIV. Brush up on your sex education with this article.

It's not worth your health to try to get Viagra cheaper from disreputable Web sites. Unfortunately, counterfeit pills have even made their way to local pharmacies. Find out how to protect yourself.

Find out how Viagra got its start with this brief and entertaining video.

This fascinating article reports on a study that found Viagra protected heart tissue better than nitroglycerin in experimental animals before and after a heart attack.

The active ingredient in Viagra, sildenafil, also has effects on the lungs and can be used to treat pulmonary hypertension in adults and premature infants. Check it out.

Learn more about erectile dysfunction, its causes and its treatments, with these great articles and videos. Choose different subcategories for even more information.