1. How does it work? Why is it useful for androgenetic alopecia?

Finasteride inhibits the enzyme called five alpha reductase type two that intervenes in the formation of the hormone DHT. Therefore, it diminishes the level of this hormone in the blood, interrupting a key factor in the development of androgenetic baldness.

2. How is it used? What is the dosage?

It is administered by ingesting one 1-mg pill per day, at any time of day.

3. What are the success rates for this treatment?

After 12 months, 65% of men treated with finasteride have had positive effects and after 24 months, the rate increases to 84% according to statistics presented at scientific conferences and in publications.

4. How long should it be used?

After two or three months of use, you will begin to see the first results of reduced hair loss and after six months, the results improve even more at which point you will note improved thickness in the hair. Concretely, the results will continue to improve with extended use for over two years. If after one year of treatment you have not observed any positive result you should consider whether or not you wish to continue the treatment. Continuous use is necessary to maintain and improve the results obtained. If the treatment is interrupted, the hair that has improved will probably fall out gradually over six to twelve months.

5. What are the side effects?

The chances of having side effects produced by finasteride are low and are near nil with extended use. Of the patients tested, 1.8% have had reduced sex drive, 1.3% have had erection dysfunctions, and 1.2% have had ejaculation disorders (0.8% reduced ejaculation). Of the patients' side effects, 58% have disappeared with continued use of the treatment and 100% when they stopped the treatment.

6. In what cases should it not be used?

Women who are planning a pregnancy or who are pregnant should not use it. Finasteride could cause abnormalities in the development of external genitals in the male fetus. It should also not be used by persons with allergies to any of the ingredients in the medication.

7. Is it efficient in women?

Very seldom. Generally, it is efficient in 30% of women and in particular in women who have problems with ovarian cysts.

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