Oxcarbazepine is an acetylurea drug, which is mainly used for the treatment of epilepsy in the clinic, and damage to the skin, nervous system and digestive system can occur after using the drug. 1. Efficacy: By blocking the sodium ion channels and calcium ion channels of neurons in the brain, it prevents the occurrence and spreading diffusion of abnormal discharges, and plays an antiepileptic role. It is mainly used in the treatment of generalized tonic-clonic seizure and partial seizure, and also used in trigeminal neuralgia which is not effective in carbamazepine treatment, and also has some effect on psychoemotional disorders. 2. Harm: The use of oxcarbazepine can appear rash, mostly maculopapular rash or urticaria-like rash, a few patients may appear exfoliative dermatitis. Neurological reactions, such as headache, dizziness, insomnia, irritability, etc., and in severe cases, ataxia, encephalopathy and dementia. Digestive system reactions, such as nausea, vomiting, diarrhea, constipation. In addition, it may cause hypothyroidism and aggravate seizures. Oxcarbazepine, as a prescription drug, must be used under the guidance of a specialist, the time of use closely monitor the adverse reactions, and the emergence of symptoms in a timely manner.