The other drugs are antibiotics to control rosacea, a common skin problem, and a statin for elevated blood cholesterol and lipids.
Dr. Bornstein, who spoke by telephone in four interviews over the past month, also said that Mr. Trump takes a daily baby aspirin to reduce the risk of a heart attack.
Over all, he pronounced Mr. Trump healthy and his medical care “as exactly up to date.”
Dr. Bornstein granted the interviews after The New York Times asked him to discuss his role in Mr. Trump’s care and to clarify and expand on earlier statements he made about his patient’s health during the presidential campaign.
At 70, Mr. Trump is the oldest person to become president.
The disclosure that Mr. Trump uses a prostate-related drug to maintain growth of his scalp hair, which has not been publicly known, appears to solve a riddle of why Mr. Trump has a very low level of prostate specific antigen, or PSA, a marker for prostate cancer. Mr. Trump takes a small dose of the drug, finasteride, which lowers PSA levels. Finasteride is marketed as Propecia to treat male-pattern baldness.
Dr. Bornstein said he also took finasteride and credited it for helping maintain his own shoulder-length hair and Mr. Trump’s hair. “He has all his hair,” Dr. Bornstein said. “I have all my hair.”