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A: Viagra (sildenafil) is indicated for use in the treatment of erectile dysfunction in men. Sildenafil citrate works by inhibiting this enzyme. When the patent expires, other drug companies can start manufacturing and selling a generic form of the drug that is usually less expensive. Have any of your heart medications been increased, especially ones that are known to cause erectile dysfunction, such as the beta blocker family, Tenormin (atenolol), Lopressor (metoprolol) and others? The Queensland trial is significantly different to the Dutch one, where Sildenafil is used in to promote growth in severely underdeveloped unborn babies. Child dosage (ages 0–17 years) This drug shouldn’t be used in children younger than 18 years of age.

In those women who continued their dose of antidepressants, their depression didn't worsen during the study, regardless of their group assignment. If you have a medication that you place under your tongue when you feel chest pain, it is probably nitroglycerin, and should not be combined with Viagra or the other two erectile dysfunction medications, Cialis (tadalafil) and Levitra (vardenafil). Always carry the original prescription-labeled container with you. You may take VIAGRA between 30 minutes to 4 hours before sexual activity if needed.

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Symptoms can include: an erection that lasts more than 4 hours Vision problems. These events, which may be accompanied by tinnitus and dizziness, have been reported in temporal association to the intake of PDE5 inhibitors, including VIAGRA. I've tried so hard to keep it up and it's starting to really eat me up thinking it's my fault. Also talk with your doctor if you have a low or high resting blood pressure, or a history of heart failure or coronary artery disease. If you would like more information, talk with your healthcare provider.

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Viagra is certainly sociologically significant as it has highlighted many social problems in the way we do health and gender and sexuality in our society. In many of the studies, of both fixed dose and titration designs, daily diaries were kept by patients. One concern is if you take nitroglycerin for angina. Card will be accepted only at participating pharmacies. When VIAGRA is co-administered with an alpha-blocker, patients should be stable on alpha-blocker therapy prior to initiating VIAGRA treatment and VIAGRA should be initiated at the lowest dose [see DOSAGE AND ADMINISTRATION, WARNINGS AND PRECAUTIONS, CLINICAL PHARMACOLOGY].

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Moreira SG, Brannigan RE, Spitz A, Orejuela FJ, Lipshultz LI, Kim ED "Side-effect profile of sildenafil citrate (Viagra) in clinical practice." Urology 56 (2000): 474-6 28. Can Viagra cause a drop in blood pressure resulting in exhaustion? They can also include erections that last longer than normal. Viagra should not be used in any patient who takes nitrates for chest pain. By inhibiting phosphodiesterase, Viagra enhances the effect of nitric oxide allowing for smooth muscle relaxation and increasing blood flow to specific areas of the body in the presence of sexual arousal or stimulation. Therefore the medication should be used with caution by patients who have left ventricular outflow obstruction and should only be used by patients who are hemodynamically stable prior to starting therapy. Diary data indicated that on VIAGRA, 48% of intercourse attempts were successful versus 12% on placebo. These individuals should have no more than 25 milligrams (mg) of Viagra at a time, and not more often than every 48 hours. Viagra relaxes muscles and increases blood flow to particular areas of the body. I dont have prescription so I can't get it from pharmacies... Of the total number of subjects in clinical studies of Viagra, 18% were 65 years and older, while 2% were 75 years and older.