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* Effectiveness

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* Dr. Nader's practice is exclusively dedicated to treating male and female hair loss.



Propecia side effects


This page centers on the possible side effects that people who have been taking propecia (finasteride) have experienced.It is important to discus an issue with propecia, frequently prescribed for androgenetic alopecia (hair loss).

As a hair restoration surgeon, hair loss patient and previous consumer of propecia, I would like to share my experience and research on propecia and its side effects.

Propecia - FInasteride
Propecia is a medication prescribed for men with a genetic predisposition to hair loss. Propecia blocks type II 5-alpha reductase enzyme that converts testosterone into dihidrotestosterone, or DHT. By doing this, finasteride lowers the concentration of DHT in the bloodstream and helps reduce the hormone from reaching hair follicles that are genetically programmed to be sensitive to DHT, helping to slow or stop hair loss.

Although studies performed by the company who makes propecia have shown that there is a 2% incidence of side effects, before taking any kind of medication you should be well aware of the side effects and what to do in case they occur.

The side effects noted from a scientifical study include:

  • Erectile Dysfunction (1.3%)
  • Decreased Libido (1.8%)
  • Decreased volume of ejaculation (0.8%)
  • Impotence
  • Breast tenderness or Enlargement


    A group of people who have taken finasteride for several reasons including hair loss have experienced common, mild, and some severe side effects. The side effects they report range from slight itching to total decrease in sexual funcion, loss of libido or sex drive, loss of sensitivity of sexual organs, mental confusion, depression, lack of energy, sleep disorders, among other side effects.

    Other factor to take into account in finasteride side effects is that when some patients stopped taking the medication, some of them did not experience immediate reversal of the symptoms. Some people from the forum have reported as much as two years after stop taking propecia with no reversal of side effects.

    These symptoms are the result of the blockage of DHT in the male hormonal system. This disrupts the balance between estrogens and androgens in the body causing female characteristics to become more prevalent.

    Case histories such as these not only mean that the finasteride problem might expand beyon "2 per cent" since its advent on the market, but that these side effects have to be taken more seriously by the people that prescribe and dispense propecia.

    After long discussions, some of the member of the finasteride side effects forum have gathered a list of recommendations to help decrease and in some cases revert most of the side effects once they stop taking finasteride. You can find the list of recommendations here.

    Today, there is no way of knowing if the person who takes oral finasteride will suffer from side effects, and if these are totally reversible in all patients.

    If you would like further information on the subject, Dr Nader would be glad to questions or comments. Please write to



    Here are a few of the most common misspellings for Propecia: Propeshia, Propesha, Propesa, Propicia, and Propeaca




    This page has the personal opinion of the author and in no way represents scientific data or any other statistical information. Information provided was gathered from people suffering from symptoms following oral consumption of finasteride.

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