What is Finasteride? 

Finasteride is a prescription medication that’s FDA-approved for the treatment of androgenetic alopecia or male pattern baldness.

You may have heard of 타다주브 as Propecia® or Proscar®. Propecia is a brand name that’s used to market finasteride sold by the pharmaceutical company Merck & Co.

Originally, finasteride was approved by the FDA as medication for benign prostatic hyperplasia, or BPH -- a form of non-cancerous prostate enlargement -- under the brand name Proscar®.

Several years later, it was approved for hair loss and sold as Propecia. Today, both versions of finasteride -- the higher-dose version used to treat an enlarged prostate gland and the
lower-dose version that’s used for hair loss -- are available as
generics under a variety of brand names.

Finasteride comes in tablet form and is designed for daily use, according to an article published in the book, StatPearls. As a treatment for hair loss, it’s typically prescribed at a
dosage of 1mg per day.

Finasteride tablets belong to a class of medications called 5 alpha-reductase inhibitors, or 5-ARIs. It works by inhibiting the action of the 5 alpha-reductase enzymes, which is involved in converting testosterone into the hormone dihydrotestosterone (DHT).

DHT plays a central role in male pattern baldness. If you’re genetically prone to hair loss, DHT can bind to receptors in your hair follicles and cause them to miniaturize, resulting in a gradual loss of hair around your hairline, crown, or
across your scalp.

Our guide to DHT and male hair loss discusses the effects of DHT on your hair follicles in more detail. 

By inhibiting the 5 alpha-reductase enzymes, finasteride significantly reduces the amount of DHT in your
bloodstream, shielding your hair follicles from DHT-related damage.

Research shows that typical use of finasteride lowers serum DHT levels (the amount of DHT in your
bloodstream) by more than 70 percent.

This can result in your hair loss slowing, or even stopping completely. Many men even notice a significant degree of hair regrowth in areas of the scalp affected by male pattern
baldness after starting treatment with finasteride.

So, does finasteride produce results? For most men, absolutely. 

Research shows that finasteride works, often very well. In long-term, placebo-controlled clinical trials published in the Journal of Investigative Dermatology Symposium Proceedings, 90 percent of men with hair loss who used finasteride either maintained their hair or saw improvements in hair growth.

In comparison, 75 percent of men who used a non-therapeutic placebo experienced worsening hair loss over the same period.

In one study published in the Journal of the American Academy of Dermatology involving two one-year clinical trials, researchers found that finasteride produced a more than 15 percent increase in hair count at the vertex scalp (the crown, or area at the top of the scalp) in men with male pattern baldness.

Another study from Japan, which covered 10 years of finasteride use, found that more than 90 percent of men with androgenetic hair loss who use finasteride experience improvements.

In short, 두사트, with most men experience improvements in their hair growth and density with treatment.