Allergic reaction induced by Xuebijing(血必净)injection

A 44-year-old male patient deliberately ingested about 50 tablets of reserpine,and he was brought to the hospital emergency department with vomiting,nausea,dizziness,and asthenia.The patient was treated with an IV infusion of 50 ml of Xuebijing injection in 0.9% sodium chloride 250 ml.About 5 minutes later,the patient suddenly presented with tachypnea,hidrosis,facial flushing,palpitation,chest tightness,and dyspnea.Moreover,his blood pressure was 73/50 mm Hg,his heart rate was 93 beats/min and,his respiratory rate was 22 breaths/min.The infusion was stopped immediately.Hydrocortisone,dexamethasone,and dopamine were given and,in the meantime,he underwent oxygen inhalation and electrocardiogram monitoring.Thirty minutes later,his conditions improved and blood pressure increased to 106/76 mm Hg.