Finasteride reduces conversion of testosterone to dihydrotestosterone (DHT). DHT contributes to progressive miniaturisation of susceptible hair follicles in men with androgenetic alopecia.
Finasteride can be prescribed to men with androgenetic alopecia. It is not suitable for every patient and requires an individual medical discussion.
Its role in women is different and important pregnancy restrictions apply. The clinic will therefore not market finasteride as a generic solution for all hair loss.
Changes in shedding and density are evaluated over months. Benefit generally requires ongoing treatment.
Potential adverse effects include sexual symptoms. Other physical and psychological effects have also been reported. The discussion should be factual and balanced rather than alarmist.
Finasteride also lowers PSA values, so other clinicians should know a patient is taking it when interpreting PSA tests.
Read androgenetic alopecia and minoxidil.