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  2. Sildenafil - Wikipedia

    en.wikipedia.org/wiki/Sildenafil

    Sildenafil's brand name, Viagra, is widely recognized in popular culture, and the drug's association with treating erectile dysfunction has led to its recreational use. [33] The reasons behind such use include the belief that the drug increases libido, improves sexual performance, [ 33 ] or permanently increases penis size. [ 34 ]

  3. Things You Probably Don't Know About Viagra (Like What ... - AOL

    www.aol.com/things-probably-dont-know-viagra...

    Generic sildenafil (and brand-name Viagra) is a medication for the treatment of ED, Raynaud’s phenomenon, and pulmonary arterial hypertension. To understand how Viagra works, we need to look at ...

  4. What Happens If You Take Viagra and You Don't Need It? - AOL

    www.aol.com/happens-viagra-dont-105800158.html

    If you struggle with ED, drugs like Viagra®, sildenafil, tadalafil, and other FDA-approved medications could help with your performance. But if you’re not prescribed one of these meds, taking ...

  5. 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.

  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. Schedule X - Wikipedia

    en.wikipedia.org/wiki/Schedule_X

    Schedule X is a class of prescription drugs in India appearing as an appendix to the Drugs and Cosmetics Rules introduced in 1945. These are drugs which cannot be purchased over the counter without a valid prescription of a Registered Medical Practitioner (RMP).

  8. What Happens If You Take 2 Viagra In 24 Hours? - AOL

    www.aol.com/happens-2-viagra-24-hours-135700769.html

    Sildenafil citrate, the active ingredient in Viagra, is a PDE5 inhibitor. Phosphodiesterase type 5 is an enzyme that’s found in the smooth muscle cells of blood vessels and helps regulate blood ...

  9. Schedule H - Wikipedia

    en.wikipedia.org/wiki/Schedule_H

    Schedule H is a class of prescription drugs in India appearing as an appendix to the Drugs and Cosmetics Rules, 1945 introduced in 1945. These are drugs which cannot be purchased over the counter without the prescription of a qualified doctor.