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Whether you’re one of the 30 million men who have (ED) or not, you’ve almost certainly heard of Viagra. Maybe you even know about other ED medications, like Levitra or Stendra or Cialis, too.
The United States' Center for Drug Evaluation and Research officially recommends that drugs past their expiration date be disposed. [11] It has been argued that this practice is wasteful, since consumers and medical facilities are encouraged to purchase fresh medication to replace their expired products, also resulting in additional profits for pharmaceutical firms.
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 ] It is taken by mouth .
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 up to six ...
The Best ED Medication for Men: Pros & Cons of Top ED Pills. Over the last 25 years, (ED) medications like Viagra and Cialis have become common fixtures in bedrooms around the world.
One advantage Cialis has over Viagra and Levitra is its 17.5-hour half-life (thus Cialis is advertised to work for up to 36 hours, [32] after which time there remains approximately 25% of the absorbed dose in the body) when compared to the four-hour half-life of sildenafil (Viagra).
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