Revatio: Uses, Dosage Side Effects – Drugs.com

Sildenafil is absolutely contraindicated in patients taking any long-acting nitrates or using short-acting nitrates because of the risk of developing potentially life-threatening But medical groups such as the American Heart Association advise men to avoid taking nitrates within at least 24 hours of shorter-acting erectile dysfunction drugs, including Viagra sildenafil nitrates Sildenafil, which is a specific phosphodiesterase type V inhibitor, enhances erection on sexual arousal by increasing the quantity of cyclic guanosine monophosphate in the corpora cavernosa. This has revolutionized the treatment of erectile dysfunction. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ( poppers ). Taking sildenafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure. To make sure Revatio is safe for you, tell your doctor if you have

Grapefruit and grapefruit juice may interact with sildenafil and lead to unwanted side effects. Avoid the use of grapefruit products while taking sildenafil. Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor. Viagra side effects Sildenafil (Viagra) is a medicine used to treat erectile dysfunction (ED, also called impotence). Sildenafil works by helping to relax the blood vessels in the penis, allowing more blood to flow in and cause an erection. viagra and grapefruit See risks and benefits. Find Important Safety Information and Indications for prescription VIAGRA (sildenafil citrate). There are many common drug interactions with grapefruit juice. Medicines that can interact include certain cholesterol medicines, antihistamines, migraine