Viagra (sildenafil) and Cialis (tadalafil) are leading phosphodiesterase-5 (PDE5) inhibitors prescribed for erectile dysfunction (ED). Both enhance blood flow to the penis during sexual stimulation ...
Is It Safe to Take Cialis Daily? Unlike other ED medications, such as Viagra® (sildenafil) and Levitra® (vardenafil), which work for four to five hours per dose, Cialis® (which contains the active ...
WASHINGTON, July 8-The FDA today ordered the makers of Viagra (sildenafil), Cialis (tadalafil), and Levitra (vardenafil) to include label information about cases of non-arteritic ischemic optic ...
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