JAMA Dermatology（皮肤病学）：度他雄胺治疗雄激素性脱发更有效,但副作用更大

The analysis found taking 5 milligrams a day of oral dutasteride had the highest probability of reducing male hair loss.

Dutasteride is a prescription drug approved by the US Food and Drug Administration for the treatment of enlarged prostate glands （前列腺增生）in men. It's also used to treat male-pattern baldness, but that use is considered "off-label" （超适应症使用）since dutasteride does not have FDA approval as a hair loss treatment.

Off-label use is quite common in medicine, Rossi said. "Many medications are used off label, but there's usually enough evidence out there to explain why we believe those drugs will work," he added.

Dutasteride does have more severe side effects than several of the treatments, however, including a loss of sexual drive and the ability to get and keep an erection.

https://edition.cnn.com/2022/02/02/health/best-hair-loss-treatment-wellness/index.html