How long to stop taking Finasteride is not clearly defined, and it is related to the patient’s condition, there is no stopping time in the strict sense. Clinically, it is necessary to take finasteride for at least 3 months, the specific stopping time is recommended to consider the recovery of the patient’s condition, under the guidance of the physician to take and stop taking the drug. Finasteride is a specific 5α-reductase inhibitor that inhibits the conversion of testosterone into the more potent dihydrotestosterone, causing the enlarged prostate to gradually shrink due to the reduction in hormonal stimulation, thus allowing it to be used in the treatment and control of benign prostatic hyperplasia and the prevention of urologic events. The drug is well tolerated, but adverse reactions such as myalgia, anxiety, rash, palpitations, impotence, elevated liver enzymes, decreased libido, itchy skin, ejaculatory disorders, and breast discomfort may still occur after administration. Before using the drug, a clear diagnosis should be made to exclude other urological diseases that may cause similar symptoms. No significant adverse interactions have been identified in combination with other drugs. It is contraindicated in pregnancy, in female and pediatric patients and in patients with hypersensitivity to the drug. If you need to use the drug patients, please under the guidance of the doctor strictly follow the instructions of the doctor to take medication, do not self-medication.