The usage and dosage of commonly used antiepileptics are briefly described as follows: 1. Phenobarbital, also known as luminal: mainly used for tonic clonic, clonic as well as tonic and simple partial seizures, with poor efficacy in complex partial seizures, and ineffective in apoplectic seizures. Children should take 3-6mg/kg/d in 2 doses. 2.Carbamazepine, also known as amidamizine, pain and frightening: mainly used for partial seizures and tonic-clonic seizures, the best effect on complex partial seizures, but not effective in catatonic seizures. Children should take 20-30 mg/kg/d in 3 doses. 3.Sodium valproate, also known as Depakene, anti-epileptic spirit: the first choice of drug in apoplectic seizures (including atypical apoplectic seizures); generalized tonic clonic seizures also have good results. It can also be used in the treatment of simple partial seizures, complex partial seizures, myoclonic seizures, atonic seizures and infantile spasms, and is a broad-spectrum antiepileptic. Children take 20-30mg/kg/d daily in 2-3 doses. 4, clonazepam, alias clonidine: mainly used for myoclonic and catatonic seizures as an adjunctive drug,, also effective for complex partial seizures, but not good for tonic clonic effect. The maintenance dose for children is 0.1～0.2mg/kg/d in 2 doses. In order to minimize side effects, it should be gradually increased from a small dose to the maintenance dose. 5, Topiramate, trade name Totai, is a new broad-spectrum antiepileptic drug, which is effective for all kinds of seizures, among which the effect of primary li secondary generalized tonic clonic seizure and simple or complex partial seizure is especially obvious. It is also effective against myoclonus and infantile spasms. Children’s initial amount of 0.5 ~ 1mg / kg / d, gradually increased to the target dose of 3 ~ 5mg / kg / d, divided into two doses. 6, Lamotrigine, trade name Libiton: mainly used for generalized seizures, partial seizures and refractory epilepsy additive therapy, which is most effective when combined with valproate. However, it is ineffective for partial myoclonic seizures. Children’s dosage according to 3 ~ 5 mg / kg / d, divided into 2 times.