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2. Sildenafil - Wikipedia

   en.wikipedia.org/wiki/Sildenafil

   Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [ 4 ] [ 8 ] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon . [ 9 ]

3. Viagra: What It Treats & Its Side Effects ( Plus What It Was ...

   www.aol.com/viagra-treats-side-effects-plus...

   Sildenafil’s role as a PDE5 inhibitor might help prevent the thickening of heart muscles, a feature that makes it difficult to pump blood. Viagra has also shown real promise for increasing the ...

4. Facing Off Against Counterfeit Online Pharmacies: Pfizer ...

   www.aol.com/news/2013-05-06-facing-off-against...

   A 2011 national survey of 1,000 men with ED conducted by Harris Interactive, sponsored by NABP and Pfizer, found that more than 4 in 5 men (82 percent) believe it is difficult to determine if an ...

5. Your ED Pill Guide: Everything You Need to Know Before ... - AOL

   www.aol.com/ed-pill-guide-everything-know...

   Sildenafil (Viagra), tadalafil (Cialis) and vardenafil (Levitra) typically start working within 30 to 60 minutes, while avanafil (Stendra) works within 15 to 30 minutes. As with most prescription ...

6. PDE5 inhibitor - Wikipedia

   en.wikipedia.org/wiki/PDE5_inhibitor

   Chemical structure of sildenafil (Viagra), the prototypical PDE5 inhibitor. A phosphodiesterase type 5 inhibitor (PDE5 inhibitor) is a vasodilating drug that works by blocking the degradative action of cGMP-specific phosphodiesterase type 5 (PDE5) on cyclic GMP in the smooth muscle cells lining the blood vessels supplying various tissues.

7. Is Sildenafil Safe for This Common Male Problem? - AOL

   www.aol.com/sildenafil-safe-common-male-problem...

   Sildenafil is most commonly prescribed to be taken one time per day in doses between 25 and 100 mg for ED. Your healthcare provider will determine the best dosage for you based on a number of factors.

8. What Does Viagra Actually Do to Your "Intimate" Experience? - AOL

   www.aol.com/does-viagra-actually-intimate...

   For example, a small study of 20 people that looked into Viagra’s effect on refractory time found that a standard 100mg dose of sildenafil citrate reduced the average male post-intimacy recovery ...

9. How to Take Viagra for Best Results - AOL

   www.aol.com/viagra-best-results-105700318.html

   How to Use Viagra for Best Results. Viagra is great as an ED treatment, but taking it in particular conditions can make it even more effective. To get the best results from Viagra when treating ...