A Case of Unilateral Idiopathic Gynecomastia Aggravated by Low-Dose Finasteride (1 mg/Day, Propecia)
May 2004
New to Finasteride? There is a guide in the encyclopedia. Read the guide → Studysummary This case report observed that a 23-year-old man developed painful unilateral gynecomastia after two months of low-dose finasteride treatment for male androgenetic alopecia, which resolved after discontinuation.
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Low dose finasteride (1 mg/day, Propecia) was used as a treatment for male androgenetic alopecia, but a case was reported where it aggravated unilateral idiopathic gynecomastia. A 23-year-old man experienced painful enlargement of his right breast two months after starting the treatment. Upon discontinuation of finasteride, the symptoms disappeared after two months. This case highlighted a potential side effect of finasteride in the treatment of hair loss.
