Viagra (sildenafil): What kind of problem do you have with your kidney? Most diseases and conditions of the kidney do not prevent someone from taking Viagra (sildenafil). The most important medicine is nitroglycerin. You cannot take Viagra (sildenafil) if you take nitroglycerin. I would still consult with your doctor regarding the kidney problem. Most likely you are safe to take it.
Answered 3/31/2015
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