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

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

   Sildenafil’s ability to increase blood flow makes the medication useful for managing other conditions. Some sources suggest Viagra might make you last longer in bed, and others say it’s good ...

3. Can You Take Viagra With High Blood Pressure? - AOL

   www.aol.com/viagra-high-blood-pressure-115800298...

   Research has found that taking Viagra does not increase high blood pressure. Sildenafil, the active ingredient in Viagra, is actually used to treat a certain kind of high blood pressure in the lungs.

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

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

   Viagra and its main ingredient, sildenafil are medications known as PDE5 inhibitors. These drugs work to increase blood flow necessary for arousal when you're stimulated.

5. Sildenafil - Wikipedia

   en.wikipedia.org/wiki/Sildenafil

   Sildenafil acts by blocking phosphodiesterase 5 (PDE 5), an enzyme that promotes breakdown of cGMP, which regulates blood flow in the penis. [8] It requires sexual arousal to work, and does not by itself cause or increase sexual arousal. [8] It also results in dilation of the blood vessels in the lungs. [8]

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

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

   Viagra (or sildenafil) lasts three to five hours after it’s consumed. Cialis (tadalafil) has a half-life of 17.5 hours, meaning this drug lasts up to 36 hours after it’s consumed.

7. 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.

8. 5 Must-Know Tips Before Taking Sildenafil 100mg - AOL

   www.aol.com/5-must-know-tips-taking-105700758.html

   For example, in clinical trials of sildenafil, 28 percent of men reported headache (by far the most common side effect) at a dosage of 100mg, compared to just 16 percent of men who used 25mg and ...

9. What Is the Safest ED Medication? - AOL

   www.aol.com/safest-ed-medication-105700669.html

   The active ingredient in Viagra, sildenafil provides relief from ED for around four hours per dose. Tadalafil . The active ingredient in Cialis, tadalafil is a long-lasting medication that can ...