Chlorpromazine belongs to the β class of receptor blockers, is an antipsychotic drug, after poisoning, the patient can appear nausea, vomiting, altered state of mind and other symptoms, the serious can lead to a drop in blood pressure or even shock, life-threatening, chlorpromazine poisoning first aid methods are mainly the following: 1, oral chlorpromazine poisoning, you can give the patient as soon as possible gastric lavage, and active, drink a lot of water, and even diarrhea to discharge poison, minimize poison absorption; 2, intramuscular overdose of chlorpromazine poisoning patients, should be sent to the hospital as soon as possible to blood perfusion treatment, to discharge the blood of chlorpromazine, reduce the amount of blood chlorpromazine poisoning. 2, intramuscular injection of excessive chlorpromazine poisoning patients, should be sent to the hospital as soon as possible for blood perfusion treatment, discharge blood chlorpromazine, reduce the amount of chlorpromazine poisoning of the patient’s blood; 3, chlorpromazine poisoning caused by patients with low blood pressure shock, you can choose to reasonably elevate the pressure of the drug, to avoid the use of dopamine vasoactive drugs, can be applied to the m-hydroxylamine, norepinephrine, α-receptor excitatory drugs, to elevate the patient’s blood pressure. Blood pressure; 4, comatose patients should strengthen the care, to avoid respiratory obstruction and pulmonary infection complications, while actively conducting infusion diuretic treatment.