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Dear Dr. Roach: My urologist put me on finasteride for enlarged prostate. What are the side effects? R.G. Finasteride blocks the conversion of testosterone (T) to dihydrotestosterone (DHT).

Dear Dr.

Dear Dr. Roach: I am a 77-year-old woman of Hispanic heritage. For many years I have been on cholesterol medication. It has always bothered me, but in the past year, the night cramps in my legs have been intolerable.

Dear Dr. Roach: I am a 65-year-old woman. As a child, I had what we called 鈥渓azy eye.鈥� My condition was that my right eye was aligned noticeably outward. I believe this is referred to as 鈥渆xotropia.

Dear Dr. Roach: I鈥檝e been diagnosed with Type 2 diabetes and prescribed 1,500 mg of metformin. My A1C is now 6.0, although even when it was 5.8, my endocrinologist kept the same dosage.

Dear Dr. Roach: I read recently that a coronavirus vaccine is scheduled for release in late October or early November in the very early stages of clinical trials.

Dear Dr. Roach: I have read everything I can find on Heberden鈥檚 nodes. I have one on the middle finger of my left hand, my writing hand. I have had this node for about three months, and I believe it is still growing.

Dear Dr. Roach: I鈥檝e seen many people wearing a full face shield without any mask covering the nose or mouth. Does this make sense? C.B. A face shield provides some protection against COVID-19, but not as much as a face mask does.

Dear Dr. Roach: I am a man, 67 and I have difficulties urinating during the night. I get up three or four times from bed to do so, and the flow is very weak. I have no issues urinating during the day. Is there a reason to be concerned? K.S.

Dear Dr. Roach: Back in late 2014, I noticed a dampness in my underwear 鈥� no coloration, only dampness. I consulted a gastroenterologist about a possible anal discharge.