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" Int J Clin Pharmacol Ther 40 (2002): 422-3. "Viagra and loss of vision. " Med Lett Drugs Ther 47 (2005): 49. Zrenner E "No chinese gold viagra reviews for alarm over retinal side-effects of sildenafil. " Lancet 353 (1999): 340-1. Egan R, Pomeranz H "Sildenafil (Viagra) associated anterior ischemic optic neuropathy.

Revision Date: 2017-10-12, 4:06:51 PM. Drug Status.

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Tell your health care provider if you are taking any other medicines, especially any of the following: Alpha-blockers (eg, doxazosin), medicines for high blood pressure, nitrates (eg, isosorbide, nitroglycerin), or nitroprusside because severe low blood pressure with dizziness, lightheadedness, and fainting may occur Azole antifungals (eg, itraconazole, ketoconazole), H 2 antagonists (eg, cimetidine), HIV protease inhibitors (eg, ritonavir, saquinavir), macrolide antibiotics (eg, erythromycin), narcotic analgesics (eg, dihydrocodeine), or telithromycin because they may increase the risk of Viagra's side effects Bosentan or rifampin because they may decrease Viagra's effectiveness. This may not be a complete list of all interactions that may occur. Ask your health care provider if Viagra may interact with other medicines that you take.

Related treatment guides. Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skillknowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient.

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