Discontinuation of finasteride, a medication commonly prescribed for androgenetic alopecia (male pattern baldness) and benign prostatic hyperplasia (enlarged prostate), typically leads to a reversal of the benefits experienced while taking the drug. Specifically, hair regrowth or maintenance achieved during finasteride treatment is likely to be lost, and prostate enlargement symptoms may return. The timeline for these changes varies among individuals but generally becomes noticeable within several months.
The effectiveness of finasteride stems from its ability to inhibit the enzyme 5-alpha reductase, which converts testosterone into dihydrotestosterone (DHT). DHT is a key hormone in the development of both male pattern baldness and prostate enlargement. By lowering DHT levels, finasteride slows or reverses these conditions. Its introduction represented a significant advancement in the management of these conditions, offering a non-surgical option for many men. Maintaining consistent use is critical for sustained results.