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

   www.aol.com/weighing-pros-cons-4-common...

   Advantages: Vardenafil lasts for longer than sildenafil and usually starts working faster. Disadvantages: Vardenafil is typically more expensive than sildenafil. Like sildenafil, it can only be ...

3. 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 ...

4. What Is the Safest ED Medication? - AOL

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

   Vardenafil. The active ingredient in Levitra, vardenafil provides relief from ED for four to five hours. Avanafil. Sold as Stendra, avanafil is a newer treatment that provides relief from ED for ...

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 dysfunction. [1] [2] It is a PDE5 inhibitor. [1]

6. How to Get Better Viagra Results in 2025 - AOL

   www.aol.com/lifestyle/better-viagara-results...

   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 ...

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]