Jingo is the trade name and the generic name is Sildenafil Citrate and the side effects are not dependence producing; the side effects of this drug are mainly diarrhea, nausea, indigestion, and abnormal vision. Sildenafil citrate is mainly used for the treatment of erectile dysfunction; according to studies, after the use of the drug, patients may experience unpleasant symptoms such as flushing, headache, nasal congestion, indigestion, nausea, vomiting, rash and abnormal vision. Before application, the cause of the disease should be diagnosed; in the case of longer erections, medical attention should be sought. This drug should be prohibited during the application of nitrate drugs, guanylate cyclase agonists (such as leucovorin) and other drugs; for patients who are allergic to this product, this drug should be prohibited; in the last six months, shock, serious arrhythmia in the population, suffering from serious cardiovascular and cerebrovascular diseases and other diseases, this drug should be prohibited. For patients, the corresponding medication program, must follow the doctor’s instructions, do not use the drug arbitrarily.