Erectile dysfunction, or penile weakness in men, can be treated with phosphodiesterase 5 inhibitors or androgenic drugs. Phosphodiesterase 5 inhibitors are the main drugs used in the treatment of erectile dysfunction, and sildenafil, a commonly used drug, belongs to this group of drugs. Adverse reactions such as headache and nasal congestion may occur after taking it, and it is forbidden to use it in combination with organic nitrate drugs, such as nitroglycerin. If the examination found due to low testosterone, then you can choose oral testosterone drugs, such as testosterone undecanoate, etc., but for prostate cancer or suspected prostate cancer patients, androgen supplementation therapy is prohibited. Specific medication, need to go to the regular hospital after consultation to comply with the views of specialists to use, after the use of medication discomfort, timely consultation, so as not to delay the condition.