Propecia (finasteride): what is it and how does it prevent baldness?

Propecia is one of the best-known drugs among those used to combat hair loss in men, but also has other applications related to the effects exerted on the hormone testosterone. If you want to discover what Propecia is exactly and why it prevents baldness, as well as its applications in other physical disorders such as benign prostatic hyperplasia, this article will be very useful for you. You can buy it at RXShopMD.

What is Propecia (finasteride)?

Finasteride is a medicine that is marketed under the name “Propecia”. Although it’s best known use is the prevention of hair loss, mainly in males, its interaction with the hormone testosterone explains that it is also used for other very different purposes.

It is a drug that acts on the enzyme 5-alpha-reductase, inhibiting its functioning. More specifically, Propecia prevents this enzyme from transforming testosterone into dihydrotestosterone -that is, it “activates” its effects, among which it is important to highlight the growth of body hair and hair, as well as male sexual development.

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Why prevent baldness?

That is why finasteride prevents baldness in men, specifically the androgenic pattern, since it interferes with hair growth as it is genetically programmed, and in men who have this type of alopecia the action of testosterone causes an abnormal hair development.

Propecia appeared in the pharmaceutical market in 1992; however, until 1997 its use as a medicine to combat hair loss was not approved. As we will see next, the first application of finasteride was the treatment of benign prostatic hyperplasia.

What is finasteride used for?

Propecia is not only used to prevent hair loss, but it has three other very relevant applications that are important to mention. All of them are related in one way or another to the effects of this drug on the action of testosterone.

To prevent hair loss

Finasteride is one of the main pharmacological treatments used to prevent and minimize hair loss in cases of androgenic alopecia in men. In contrast, it is not effective in treating alopecia in women, even when the pattern of baldness is androgenic. Studies indicate that the alteration tends to improve approximately 30% after 6 months of treatment but sometimes the slowing of hair loss is maintained even if the consumption of Propecia is interrupted.

To treat excess hair

Paradoxically, Propecia is also effective in treating hirsutism, that is, excessive hair growth. Specifically, finasteride is used in cases of hyperandrogenism in women. This disorder is characterized by the excessive presence of male sex hormones (androgens).

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