Revatio (Sildenafil)

What is Revatio?

Viagra is the citrate salt of sildenafil which is a selective inhibitor of cyclic guanosine monophosphate (cGMP) – specific phosphodiesterase type 5 (PDE5).

What is Revatio used for?

Viagra is used to treat erectile dysfunction in men. It relaxes muscles and enhances blood flow to certain areas of the body.

How does Revatio work?

Viagra works by blocking a certain enzyme (phosphodiesterase-PDE5) in the body. The drug, in combination with sexual stimulation, works by helping blood flow in penis to achieve and maintain penis erection.

How to use Revatio

Viagra should be taken in the manner prescribed by the doctor. Taking it for longer periods or in larger amounts than recommended can cause health problems.

The drug is usually taken when required, at least 30 minutes before sexual activity. Do not take this drug more than once daily.

Revatio warnings and precautions

Do not take Viagra with nitrate medicines as it can reduce blood pressure and cause heart attack or stroke.

Prior to taking Viagra, tell your doctor if you have high or low blood pressure, kidney or liver disease, coronary artery disease or congestive heart failure, bleeding disorder (e.g. hemophilia), retinitis pigmentosa, stomach ulcer, blood cell disorder (e.g. sickle cell anemia, leukemia, or multiple myeloma), Peyronie’s disease (physical deformity of penis).

If you have a recent history of stroke, heart attack, or heart rhythm disorder, consult your doctor before taking Viagra.

What do I do if I have missed a Revatio dose?

Viagra is used as needed. Since you are not on a dosing schedule, it doesn’t matter if you miss a dose.

What do I do if I have taken a Revatio overdose?

If you have taken a Viagra overdose you should seek medical attention.

Revatio interactions

Do not use Viagra if you are taking nitrate drugs to treat heart problems or chest pain. Nitrate drugs include isosorbide dinitrate (Dilatrate-SR, Sorbitrate, Isordil); isosorbide mononitrate (ISMO, Imdur, Monoket); and nitroglycerin (Nitrolingual, Nitro-Dur, Nitrostat, Nitro-Bid). Nitrates are also found in some recreational drugs like amyl nitrate or nitrite (“poppers”).

Before taking Viagra, consult your doctor if you are taking drugs like cimetidine (Tagamet, Tagamet HB), diclofenac (Cataflam, Arthrotec, Voltaren, Solareze, Flector Patch), imatinib (Gleevec), rifampin (Rimactane, Rifadin), bosentan (Tracleer), conivaptan (Vaprisol), enoxacin (Penetrex), isoniazid (for treatment of tuberculosis); an antibiotic such as dalfopristin/quinupristin (Synercid), clarithromycin (Biaxin), erythromycin (Erythrocin, Ery-Tab, EryPed, E.E.S.) or telithromycin (Ketek); heart or blood pressure medicines such as doxazosin (Cardura), nicardipine (Cardene), diltiazem (Dilacor, Cardizem, Tiazac), quini

Revatio side effects

Viagra side effects include hives; breathing difficulty; swelling of face, tongue, lips or throat; dizziness, nausea; tingling in chest, neck, arms or jaw; and numbness during sexual activity. If you get any of these side effects after using Viagra, stop taking the medicine and contact your doctor.

Sudden vision or hearing loss, chest pain, heavy feeling, ringing in ears, sweating, pain spreading to arms or shoulder, vision changes, feeling short of breath, irregular heartbeat; swelling in hands, feet or ankles; ; painful penis erection that lasts for 4 hours or more are also side effects from Viagra.

Stuffy nose, back pain, headache; redness in face, chest or neck; memory problems or upset stomach are some less serious side effects of Viagra.