Studies of selective phosphodiesterase type 5 inhibitors (sildenafil [Viagra], vardenafil [Levitra], and tadalafil [Cialis]) as therapy for women with sexual arousal disorder have produced mixed ...

In the United States, two drugs have been approved to treat female sexual interest/arousal ... phosphodiesterase type 5 (PDE-5) breaks down. Sildenafil, the active ingredient in Viagra, blocks ...

While generic sildenafil and Viagra are equally safe and effective phosphodiesterase type 5 (PDE5) inhibitors, they have one key difference: price. Viagra costs $90 to $139 per tablet. Generic ...

And there are increasing numbers of ways to take sildenafil and other ED meds to help provide benefits when the timing’s right — including chewable tablets. Read on to learn more about ...