The action of spearhead viper hemagglutinin is mainly used to reduce bleeding or stop bleeding, such as bleeding and bleeding disorders in clinical departments of surgery, internal medicine, obstetrics and gynecology, ophthalmology, otorhinolaryngology, stomatology, etc.; it can also be used to prevent bleeding, such as using the drug before surgery to avoid or reduce bleeding at the surgical site and after surgery. If you are allergic to this drug is not available, if allergy occurs after using the drug, you can use anti-allergic drugs for treatment, serious to use hormonal drugs for treatment. Do not use the medicine by yourself, always use the medicine under the guidance of a doctor.