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Sildenafil Brand Names

Sildenafil Brand Names

Sildenafil

Generic Name: sildenafil (oral) (sil DEN a fil)

Brand Names: Revatio, Viagra

What is sildenafil?

Sildenafil relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body.

Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men.

Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.

Do not take Viagra while also taking Revatio, unless your doctor tells you to.

What is sildenafil, and how does it work (mechanism of action)?

Viagra (sildenafil) is an oral drug that is used for treating impotence (or erectile disfunction, ED, the inability to attain or maintain a penile erection). It is in a class of drugs called phosphodiesterase inhibitors (PDE-5 inhibitors) that also includes

tadalafil (Cialis),

vardenafil (Levitra, Staxyn ODT), and

avanafil (Stendra).

It has been estimated that impotence affects 140 million men worldwide. Over half of all men with impotence are thought to have some physical (medical) cause. The remainder are believed to have psychogenic causes of impotence. Medical causes of impotence include diabetes and circulatory, neurological, or urological conditions.

Sildenafil side effects

Get emergency medical help if you have signs of an allergic reaction to sildenafil: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking sildenafil and get emergency medical help if you have:

heart attack symptoms - chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;

vision changes or sudden vision loss; or

erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).

What is the dosage for sildenafil?

The usual recommended dose is 25 to 100 mg 1 hour before sexual activity.

The maximum dose is 100 mg daily.

The elderly (over 65 years of age) should start at 25 mg before sexual activity.

Sildenafil is rapidly absorbed. Maximum observed plasma concentrations are reached within 30 to 120 minutes (median 60 minutes) of oral dosing in the fasted state. When sildenafil is taken with a high fat meal, the rate of absorption is reduced, with an average delay in the time to maximal concentration of 1 hour.

How should I keep sildenafil stored?

Tablets should be kept at room temperature between 15 C and 30 C (59 F and 86 F).

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