Vardenafil Reference

Plain English

What it is

Vardenafil is a prescription pill for erectile dysfunction (trouble getting or keeping an erection). It is in the same family as Viagra (sildenafil) and Cialis (tadalafil), a group called PDE5 inhibitors. Its brand names are Levitra and Staxyn, and Staxyn is a version that melts on the tongue.

What people use it for

Its FDA-approved job is treating ED in men. It relaxes blood vessels so more blood can flow into the penis when a man is aroused, which means it only works with sexual stimulation. Some people choose it as an alternative when another ED pill gives them too many side effects.

What the science shows

Large human studies show it works about as well as sildenafil and tadalafil for ED, with similar side effects like headache, flushing, and a stuffy nose. Doctors often say the best pill is simply the one that suits each person best, so patients may try more than one.

The catch

It can be very dangerous, even deadly, if mixed with nitrate heart medicines (like nitroglycerin) or with the drug riociguat, because blood pressure can crash. People with certain heart-rhythm problems (long QT) or on some heart-rhythm drugs should avoid it. It is prescription-only, and any use other than treating ED is off-label.

Reference summary

FDA-approved oral PDE5 inhibitor for erectile dysfunction, backed by large randomized human trials and a full FDA label. It raises cGMP through the nitric-oxide pathway to relax penile smooth muscle with sexual stimulation. Peer-reviewed reviews place its efficacy broadly on par with sildenafil and tadalafil and describe it as a well-tolerated option, which is the basis for the tolerability-alternative framing (not a labeled superiority claim). It carries a distinctive QT caution in addition to the class contraindications.

Regulatory and posture

Categories

Sexual Health

Aliases

Levitra, Staxyn, Vivanza, vardenafil hydrochloride, BAY 38-9456

Evidence posture

human - Labeled use (ED) is backed by human trials; the tolerability-alternative framing reflects comparative reviews, not a labeled superiority claim.

Regulatory status

FDA-approved prescription medicine. Approved in 2003 for erectile dysfunction. Two oral forms exist: film-coated tablets (Levitra, now widely generic) and an orally disintegrating tablet (Staxyn) that dissolves on the tongue. The two forms are not interchangeable because the disintegrating tablet produces higher systemic exposure. Not a controlled substance. Any use outside labeled ED treatment is off-label.

Content review status

label verified