sa¹ú¼Ê´«Ã½

Skip to content
Join our Newsletter

Your Good Health: Viagra mustn’t be taken with some drugs

Dear Dr. Roach: My husband is taking Eliquis 5 mg (half a tab daily). He has had erectile dysfunction for 15 to 20 years and is 78 years old. Since we are in a new marriage, he obtained ­Viagra in Mexico. His ­cardiologist would not prescribe it.
dr_keith_roach_with_bkg.jpg
Dr. Keith Roach writes a medical question-and-answer column weekdays.

dr_keith_roach_with_bkg.jpgDear Dr. Roach: My husband is taking Eliquis 5 mg (half a tab daily). He has had erectile dysfunction for 15 to 20 years and is 78 years old. Since we are in a new marriage, he obtained ­Viagra in Mexico. His ­cardiologist would not prescribe it. What precautions should he take or symptoms to look for when he starts taking it? He also takes hydralazine, metoprolol, Lipitor and Isordil.

J.B.

While I wish you both a happy marriage, he should absolutely listen to his cardiologist. This doctor is refusing to prescribe Viagra for a very good reason: It cannot be taken with any form of nitroglycerine.

Isosorbide mononitrate (Isordil) is a long-acting form of nitroglycerine. In combination with Viagra or similar ­medicines, your husband’s blood pressure can drop into a very dangerously low level and stay that way a very long time. He should talk to his regular doctor or a urologist about other options (such as alprostadil) that can be safely taken along with nitroglycerine-like drugs.

Dear Dr. Roach: During heat waves, is there an ideal indoor temperature for elderly people and people with heart ­conditions? I have a disabled brother with heart conditions, and for some reason he seems immune to the heat and doesn’t turn on the AC. His caregivers sometimes find him sitting in a room that’s 32 C! I would like to give instructions to his ­caregivers for setting the thermostat to a safe level.

L.C.

The most comfortable indoor temperature varies greatly among individuals. The highest temperature that is safe for a population also varies, based on the area of the world and the temperatures people are used to. In Mediterranean countries, indoor temperatures up to 29 C do not increase medical risk, whereas in northern continental cities, a maximum safe temperature of 23 C has been identified by the World Health Organization. Most people feel most comfortable with indoor temperatures between 20 C and 23 C. Humidity, air movement with wind or fans, and a person’s medical condition — ­thyroid disease in particular really changes a person’s temperature regulation — all have a role, so I can’t give you a single number that is right for everyone. I agree that 32 C is too hot.

Dr. Roach regrets he is unable to answer individual letters, but will incorporate them in the column whenever possible. Readers may email questions to [email protected]