Arginine and citrulline are generally of no particular benefit to men. 1. Arginine: is a western drug, is a drug belonging to the amino acid, clinical mainly used for patients with hepatic coma caused by increased blood ammonia as well as metabolic alkalosis. Excessive consumption can cause hyperchlorhydria, as well as increased concentrations of uric acid, creatinine and creatine, and a few will have allergic reactions. It is prohibited for those who are allergic to the ingredients, acidosis, renal insufficiency, anuria, and patients with fulminant hepatic failure. 2. Citrulline: It is also a type of amino acid, which can participate in the metabolism of liver muscle as well as play the role of nutritional supplementation. Arginine and citrulline have no other benefits for men, there are diseases that should seek medical attention in time, follow the doctor’s instructions for treatment, and avoid the abuse of drugs or health products.