Imported antiepileptic drugs include sodium valproate, oxcarbazepine, lamotrigine, levetiracetam, as follows: 1. Sodium valproate, commonly imported formulations are sodium valproate oral solution, sodium valproate extended-release tablets, is a broad-spectrum antiepileptic drug, can be applied to various types of epilepsy, side effects are mainly liver function damage, sometimes also cause bone marrow suppression. Women may cause infertility and need to be used with caution; 2. Oxcarbazepine, this drug is a derivative of carbamazepine and is relatively expensive compared to carbamazepine, with fewer side effects and better antiepileptic effects. It is suitable for symptomatic epilepsy and secondary epilepsy, and can also be used for primary epilepsy and generalized tonic clonic seizures, etc. It is recommended for elderly patients and children; 3. lamotrigine, the advantage of this drug is good antiepileptic effect, the disadvantage is that the dosage must be added slowly, it takes eight weeks to reach the therapeutic dose, and it is easy to cause rash; 4. levetiracetam, this drug is most commonly used to add treatment, and can also be used as a single drug Treatment of epilepsy. The advantage is that it has fewer side effects, does not cause significant liver or kidney damage, and has no effect on cognitive function.