March 27, 2008, marks 10 years since the FDA approved sildenafil (Viagra). Since then, it has been used by 35 million men worldwide.

Although sildenafil improves erectile dysfunction (ED) in many men, some critics say it leads to dependency and is overprescribed, particularly among younger men.

33% of Medscape poll participants said that Viagra is overprescribed, while only 18% said that it is not prescribed as often as it should be. 

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