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

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

   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 can provide ...

3. 4 Common ED Pills: Weighing the Pros & Cons of Each - AOL

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

   Vardenafil (Levitra) Vardenafil is the active ingredient in Levitra, and the FDA approved it in 2003. It’s similar to sildenafil but lasts longer — research suggests it provides better blood ...

4. Things You Probably Don't Know About Viagra (Like What It Was ...

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

   As long as it’s used as directed, it’s considered safe and effective. ... How Long Does Viagra Last? ... (tadalafil), Levitra (vardenafil), and Stendra (avanafil), may also help.

5. 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 ... This page was last edited on 1 August 2024, ...

6. Cialis Side Effects: What to Expect (& How to Avoid Them) - AOL

   www.aol.com/cialis-side-effects-expect-avoid...

   Cialis has an impressively long half-life — one dose can last up to 36 hours (hence, its nickname “the weekend pill”). ... (Viagra), vardenafil (Levitra), and avanafil (Stendra), will ...

7. Discovery and development of phosphodiesterase 5 inhibitors

   en.wikipedia.org/wiki/Discovery_and_development...

   This allows for a longer therapeutic window and is therefore often a more convenient drug than others with a shorter therapeutic window. Tadalafil is more bioavailable (80%) than sildenafil (40%) and vardenafil (15%) but it has a slow absorption, or about 2 hours compared to 50 minutes of sildenfil. Vardenafil is most known for its potency. [24]