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  2. 4 Common ED Pills: Weighing the Pros & Cons of Each - AOL

    www.aol.com/4-common-ed-pills-weighing-141800609...

    Its long duration means side effects could last longer than with other ED pills. Tadalafil Pros Tadalafil has a half-life of 17.5 hours — it remains active in your body for far longer than other ...

  3. Vardenafil - Wikipedia

    en.wikipedia.org/wiki/Vardenafil

    Vardenafil, sold under the brand name Levitra among others, is a medication that is used for treating erectile dysfunction. [1] [2] It is a PDE5 inhibitor. [1]

  4. Erectile dysfunction - Wikipedia

    en.wikipedia.org/wiki/Erectile_dysfunction

    Sildenafil, Tadalafil, Vardenafil [ 13 ] Erectile dysfunction (ED), also referred to as impotence, is a form of sexual dysfunction in males characterized by the persistent or recurring inability to achieve or maintain a penile erection with sufficient rigidity and duration for satisfactory sexual activity. It is the most common sexual problem ...

  5. What Is the Safest ED Medication? - AOL

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

    The active ingredient in Cialis, tadalafil is a long-lasting medication that can provide relief from ED for up to 36 hours. Vardenafil . The active ingredient in Levitra, vardenafil provides ...

  6. PDE5 inhibitor - Wikipedia

    en.wikipedia.org/wiki/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. These drugs dilate the corpora cavernosa of the penis, facilitating erection with ...

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

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

    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 ...