The main effects of Finasteride are for the treatment of prostate enlargement, reduction of prostate size, and treatment of male pattern baldness. The mechanism of action of Finasteride is to block the male hormone, so that the level of male hormone within it decreases, so as to achieve the purpose of inhibiting prostate hyperplasia, reducing or even shrinking the prostate. Finasteride tablets are also available for the treatment of male pattern baldness, the reason for which is that the androgen in the body is not very stable and needs to be suppressed and treated by taking some anti-androgenic drugs, and Finasteride is a kind of anti-androgenic drug often prescribed by doctors, which is helpful for the treatment of those who suffer from male pattern baldness. Common side effects of this drug include nausea, gastrointestinal upset, insomnia, and dizziness. There is also a risk of low libido, and gynecomastia and breast pain in younger people using this drug. Note that it should be used with caution in younger people, as too much Finasteride tablets may cause the patient’s sexual function to be affected, with symptoms such as sexual dysfunction, erectile dysfunction or impotence. This medication needs to be used properly under medical supervision.