I received a phone call from the parents of a child with epilepsy who was discharged from my hospital today, saying that the child was convulsing again, and I asked him if he had taken his anti-epileptic drugs on time, and that he was expected to come to check the blood concentration in the near future. The first Affiliated Hospital of Henan Medical College, Department of Pediatrics, Party Weili 1. The blood concentration of the drug will be checked after the drug is metabolized in the body, and if the blood concentration decreases, the seizure will be considered to increase the dosage.