Finasteride-induced gynecomastia
May 2009
in “Indian Journal of Dermatology, Venereology and Leprology”
TLDR Finasteride can cause rare breast growth side effect, with varying recovery after stopping.
The article reports two cases of gynecomastia, a rare side effect of finasteride, a drug used to treat male androgenetic alopecia. One patient experienced complete resolution of gynecomastia after stopping treatment, while the other had partial resolution. Reduction in serum dihydrotestosterone is a theoretical cause of gynecomastia induced by finasteride. The article suggests that continued surveillance and close follow-up of cases on long-term treatments with finasteride are needed for better knowledge of the real incidence of gynecomastia.
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