Often referred to as the “little blue pill,” Viagra (which contains the active ingredient sildenafil) was first approved by ...

A new study reports that mirodenafil, a newly developed oral phosphodiesterase type 5 (PDE5) inhibitor, is an efficacious and safe treatment for erectile dysfunction (ED). Many men with ED ...

In males, an erection goes down when an enzyme called phosphodiesterase type 5 (PDE-5) breaks down. Sildenafil, the active ingredient in Viagra, blocks the action of PDE-5. This means that blood ...

While you may not be able to get Viagra or other ED medications or phosphodiesterase type 5 (PDE5) inhibitors over the counter, there are other treatments you can find and try out for ED.

(Related: The Best ED Pills for Men) Cialis is the brand name for tadalafil. Tadalafil is a phosphodiesterase type 5 ...

For many couples sexual activity is unplanned, so phosphodiesterase type 5 inhibitor therapy that allows a wide time-frame for achieving successful intercourse would give couples more freedom to ...