The function of bicalutamide capsule is mainly anti-androgen therapy, commonly used in patients with prostate cancer, can treat androgen-dependent prostate cancer. Bicalutamide capsule belongs to the androgen receptor antagonist, the mechanism of action is through the androgen receptor in the target tissue binding, so as to play a role in inhibiting androgen, so it can treat androgen-dependent prostate cancer. If the advanced prostate has undergone surgical radical treatment, some also with the bilateral testicular denervation surgical treatment, postoperative oral 1 tablet per day bicalutamide, can play the role of anti-androgen therapy, can inhibit local recurrence and distant metastasis, in addition, if there is no bilateral orchiectomy denervation treatment, the dosage should be larger, usually 3 tablets per day. Because bicalutamide capsule may cause damage to the patient’s liver and kidneys, so in the process of using the drug patients should be regularly monitored every month for liver, kidney function and other tests. Drugs need to be used under the guidance of a professional physician, do not self-medicate.