Wu Bei Zi is a Chinese herb with slight toxicity, but the general use of the amount within the normal dose will not cause harm to the human body. It is often used to treat lung deficiency and cough, prolapse, blood in the stool, bleeding hemorrhoids, men’s seminal emission, premature ejaculation and other diseases. However, it is important to note that pentospermum should be used under the guidance of a professional doctor and should not be used without authorization. If used in excess, a series of side effects can occur, as follows: 1, indigestion, constipation: five times the seeds contain tannic acid, which has the effect of interfering with the absorption of food, if excessive consumption of five times the seeds, will slow down the absorption of food, resulting in indigestion, constipation will occur for a long time; 2, pain, vomiting: excessive consumption of five times the seeds, will stimulate, corrosion of tissue mucosa, especially the gastrointestinal mucosa, prone to pain, vomiting and other reactions. If consumed on an empty stomach, the reaction will be more serious. However, after stopping the consumption of five times, the above symptoms can generally disappear on their own, if not relieved after stopping, should promptly seek medical attention; 3, kill sperm: the right amount of five times can effectively treat male spermatorrhea, premature ejaculation problems, but excessive use, excessive astringent effect, will damage the quality of sperm, and even make sperm die.