Finasteride is a medication in tablet form that can be used for two extraordinarily different purposes – treatment for benign enlargement of the prostate gland and increasing hair growth in male pattern baldness.

It must never be used in women, as during pregnancy severe damage may be caused to the foetus. Pregnant women whose male partner is using finasteride must avoid sex during pregnancy as even contact with semen may cause deformities in the foetus.

Side effects may include impotence, decreased libido, breast enlargement in men and a rash.

It is quite expensive, extremely dangerous in pregnancy, but otherwise safe and effective. It may take some months for an improvement in symptoms.

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