Guhong Injection can be used by intravenous drip method. Guhong injection is a compound preparation, its usage is mainly intravenous drip, the dosage is usually 10-20ml at a time, can be diluted with 5% or 10% glucose injection or 0.9% sodium chloride injection 250-500ml, once a day, 10-15 days for a course of treatment. Guhong Injection is mainly used for the treatment of cerebrovascular diseases, such as cerebral blood supply insufficiency, cerebral thrombosis, cerebral embolism and cerebral hemorrhage in the recovery period; low consciousness function caused by liver disease, neurosurgery, etc.; mental retardation, memory disorders and so on. It can also be used to treat coronary heart disease, vasculitis, etc. Adverse reactions: Occasionally see fever, rash and other allergic reactions, individual cases may cause a drop in blood pressure. Contraindications: It is prohibited for those who are allergic to this product. It is prohibited to use when there is a change in the character of the drug. Use with caution in patients with bleeding tendency. The drug needs to be applied under the guidance of a doctor, and should not be used blindly on its own.