Finasteride can usually be taken 1 tablet on two days, but it is not possible to generalize due to the different conditions of individual patients. Finasteride is a 5-alpha reductase inhibitor that treats benign prostatic hyperplasia, improves symptoms and reduces the risk of acute urinary retention. Generally the recommended dosage of the drug for normal men is once a day, and some patients can take it once every two days if their disease is mild. However, it should be done under the guidance of a doctor, do not change the dosage without authorization, so as not to damage the health of the body, not conducive to the recovery of the disease. Some patients may experience mild adverse reactions during the use of the drug, such as decreased libido, skin rash, breast discomfort, decreased semen volume. It should be noted that Finasteride is not suitable for women and children, as well as those who are allergic to the product, pregnancy, suspected pregnancy and other groups of people, the use of such drugs need to be contraindicated. Patients need to strictly follow the doctor’s instructions during the use of drugs for regular review, in order to understand the recovery of the disease.