It is not useful to take finasteride tablets for prostate cancer. Finasteride tablets are 5a reductase inhibitors, which can make the enlarged prostate shrink, improve urinary flow and other symptoms, usually used to treat benign prostatic hyperplasia and hair loss, but for the treatment of prostate cancer is not any therapeutic effect. It is important to note that this drug should not be taken by people who are allergic to this drug, women and children, and it should be used with caution in the presence of hepatic insufficiency and hepatic metabolism insufficiency. Finasteride tablets are prescription drugs, if you need to use, must be prescribed under the guidance of a doctor to take, not blindly without authorization. In addition, the patient in the medication period, it is recommended not to smoke and drink, the diet should be light, try not to eat spicy stimulating food, can be appropriate physical exercise, to enhance their own immunity, if any discomfort, should be timely medical care.