Two drugs in this class are Levitra (vardenafil) and Viagra (sildenafil). Levitra is no longer available as a brand-name drug in the United States, so it is now prescribed in its generic form ...

Vardenafil has previously been demonstrated to be effective and well tolerated, and to have a rapid onset of action in men with erectile dysfunction. In this prospective study, Porst et al.

gmail.com Background: Vardenafil is a new phosphodiesterase-5 inhibitor that has shown some efficacy in the treatment of pulmonary arterial hypertension (PAH). Objective: To examine the long-term ...