Type 5-phosphodiesterase inhibitor is a kind of drug that inhibits the activity of phosphodiesterase, and the main drugs are sildenafil, tadalafil tablets and other drugs, which are used for treating erectile dysfunction and other diseases in men. Patients should pay attention to diet and exercise properly while taking the drug. The main drugs of 5-phosphodiesterase inhibitors are tadalafil tablets, sildenafil citrate tablets and other drugs, which are mainly used in the treatment of male patients with erectile dysfunction and other diseases.5-phosphodiesterase inhibitors can improve the patient’s erectile function and help the patient to complete the sexual life. It should be noted that patients should pay attention to their diet while taking the medication. Eat less spicy, stimulating food, avoid drinking alcohol, to avoid food stimulation to affect the effectiveness of the drug. It is recommended that the patient should exercise appropriately, and carry out exercises such as brisk walking, jogging, swimming and so on, to enhance physical fitness. The use of this class of drugs may cause headache, back pain, indigestion and other adverse reactions. It is contraindicated for people who are allergic to any of the ingredients in this product, patients who are taking any form of nitrates, guanylate cyclase stimulators, women, children and other people. Type 5-phosphodiesterase inhibitor drugs are mainly used for the treatment of erectile dysfunction in male patients, patients should use the drug under the guidance of a doctor to avoid blind use of the drug.