Revatio (Sildenafil Citrate) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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May 26, 2012

Revatio

Pulmonary Hypertension »

What are pulmonary arteries?

The human body has two major sets of blood vessels that distribute blood from the heart to the body. One set pumps blood from the right heart to the lungs and the other from the left heart to the rest of the body.

The portion of the circulation that distributes oxygen-rich blood from the left side of the heart, throughout the body, is referred to as the systemic circulation.
The blood then returns from the body to the right side of the heart and passes through the lungs to replenish oxygen.
It then returns to the left side of the heart for another round through the systemic circulation.
The portion of the circulation that distributes the blood from the right side of the heart to the lungs is referred to as the pulmonary (lung) circulation.
The pulmonary arteries are the major blood vessels that carry blood from the rig...

Read the Pulmonary Hypertension article »

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REVATIO
(sildenafil) Tablets,

REVATIO
(sildenafil) Injection

DRUG DESCRIPTION

REVATIO (sildenafil citrate) , a therapy for pulmonary arterial hypertension, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type-5 (PDE5). Sildenafil is also marketed as VIAGRA® for erectile dysfunction.

Sildenafil citrate is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo [4,3-d] pyrimidin-5-yl)-4ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate and has the following structural formula:

Revatio (sildenafil) Structural Formula Illustration

Sildenafil citrate is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7.

REVATIO (sildenafil citrate) Tablets: REVATIO (sildenafil citrate) is formulated as white, film-coated round tablets equivalent to 20 mg of sildenafil for oral administration. In addition to the active ingredient, sildenafil citrate, each tablet contains the following inactive ingredients: microcrystalline cellulose, anhydrous dibasic calcium phosphate, croscarmellose sodium, magnesium stearate, hypromellose, titanium dioxide, lactose monohydrate, and triacetin.

REVATIO (sildenafil citrate) Injection: REVATIO (sildenafil citrate) is supplied as a clear, colorless, sterile, ready to use solution containing 10 mg (12.5 mL) of sildenafil. Each mL of solution contains 1.124 mg sildenafil citrate, 50.5 mg dextrose and water for injection.

What are the precautions when taking sildenafil citrate (Revatio)?

Before taking sildenafil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: sickle cell disease, high or low blood pressure, a severe loss of body water (dehydration), history of painful/prolonged erection (priapism), eye problems (such as decreased vision in one or both eyes, retinitis pigmentosa), heart problems (such as heart attack or irregular heartbeat in the past 6 months, heart failure, chest pain/angina, aortic stenosis, idiopathic hypertrophic subaortic stenosis), kidney disease, liver...

Read All Potential Precautions of Revatio »

Last reviewed on RxList: 12/29/2010
This monograph has been modified to include the generic and brand name in many instances.