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Have or have had stomach or intestinal ulcers.Have ever had severe vision loss, including an eye problem called NAION.Have retinitis pigmentosa, a rare genetic (runs in families) eye disease.Have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia.
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Have had an erection that lasted for more than 4 hours.
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What is sildenafil 20 mg tablets (Revatio)?Ģ0 mg sildenafil is a prescription medicine used in adults to treat pulmonary arterial hypertension (PAH). Street drugs called “poppers” (amyl nitrate or nitrite)Īsk your doctor or pharmacist if you are not sure if you are taking a nitrate medicine.Nitroglycerin in any form including tablets, patches, sprays, and ointments.Medicines that treat chest pain (angina).Your blood pressure could drop quickly to an unsafe level. What is the most important information I should know about sildenafil 20 mg tablets (Revatio)? Never take sildenafil with any nitrate medicines. If you have any questions about sildenafil, ask your doctor or pharmacist. This information does not take the place of talking with your doctor about your medical condition or treatment. Read this Patient Information before you start taking sildenafil 20 mg (Revatio) and each time you get a refill.