Anticonvulsant drugs, diazepam is the preferred antispasmodic drug, diazepam safe and effective, rapid action, 1-3 minutes after intravenous injection takes effect, sometimes in a few seconds after the injection can control the convulsions. Severe convulsions with diazepam intravenous drip, each 0.2-0.5mg/kg body weight, the maximum amount at a time under 5 years of age is 5mg, more than 5 years of age is 10mg, necessary time interval 15-20 minutes, repeat once, 24 hours can be repeated 2-4 times. The rate of intravenous injection is 1mg per minute push, too fast can cause respiratory depression in babies. Diazepam can be injected directly without dilution, such as static point with saline as the solvent, per 500ml of liquid, plus diazepam should be less than 40mg, more than can cause precipitation.