There is no clinical statement of the best western medicine for impotence, impotence may be caused by age, prostatitis or diabetes. You can choose 5-type phosphodiesterase inhibitors, antibiotics, nutritive nerves and other drugs for treatment. 1. Age: As age increases, men may have symptoms of impotence. Patients can choose 5-type phosphodiesterase inhibitor drugs for treatment, such as sildenafil citrate tablets, tadalafil tablets and so on. 2. Prostatitis: when the prostate is stimulated by inflammation, it may cause symptoms of impotence. Patients can choose antibiotic drugs such as levofloxacin to treat prostatitis, so as to improve and relieve the symptoms of impotence. The specific choice of antibiotics need to do bacterial culture and drug sensitivity test to determine. 3. Diabetes: Diabetic patients will have peripheral neuropathy, may also lead to impotence, should first control blood sugar. Nutritional nerve drugs can be chosen to improve the symptoms of impotence, such as methylcobalamin tablets, vitamin B12 and so on. It is recommended that patients with impotence go to the hospital in time, identify the cause of the disease and then actively treat it, and the drugs should be applied under the guidance of the doctor.