October 18, 2018

Concurrent use of Viagra and nitrates are contraindicated

Ask The Doctor > Questions & Answers > Concurrent use of Viagra and nitrates are contraindicated

Patient: I am 55 with CAD, I am on 30mg of Imdur and have trouble getting an erection. Can I cut the dosage in half, still get the benefit, then safely take Viagra, or something like it?

Doctor: The use of regular or occasional organic nitrates in any form (such as isosorbide mononitrate) is contraindicated with c oncurrent use of Viagra (sildenafil). Therefore I do not recommend this combination. I would advise discussing alternative therapies or prescriptions with your family doctor..


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Dr. Jimmy Obaji M.D.

Dr. Jimmy Obaji completed his residency in Family Medicine at the University of Manitoba. He currently operates a walk-in-clinic in downtown Toronto.

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