There is no authoritative information on how long it takes for Finasteride to be effective in treating hair loss. Generally, patients will see results in about 3 months after using Finasteride. However, some patients may experience adverse effects such as loss of libido after using Finasteride. In addition, women and children as well as allergic people should not use Finasteride. Finasteride tablets are mainly used for the treatment of benign prostatic hyperplasia, currently in the clinical small dose finasteride can also be used for the treatment of baldness, but there is no specific data to indicate how long it takes for finasteride tablets to be effective in the treatment of hair loss. Most patients with finasteride tablets for the treatment of baldness can see the effect of about 3 months, if the patient’s condition is serious, need to extend the time of medication, the specific treatment of alopecia need to be based on the patient’s condition. Some patients may experience adverse reactions such as decreased libido and impotence after using Finasteride tablets. In addition, women as well as children are forbidden to use finasteride tablets. In addition, people who are allergic to Finasteride Tablets drug are prohibited from using the drug to prevent allergic symptoms such as respiratory difficulties and skin itching. Finasteride tablets for the treatment of baldness is generally effective in about 3 months, it is recommended that patients consult a doctor before using the drug, follow the doctor’s instructions for medication.