The difference between imported and domestic levetiracetam is the difference in origin. At present, domestic drugs have passed the national consistency evaluation of drug effects and side effects, and their efficacy and side effects are comparable to those of imported drugs, and the price is relatively cheaper. Levetiracetam is indicated for the treatment of partial seizures (with or without secondary generalized seizures) in adults and children over 4 years of age, as well as for the add-on treatment of generalized tonic clonic seizures in adults and adolescents over 16 years of age with epilepsy. Adverse reactions include drowsiness, hostility, nervousness, moodiness, agitation, loss of appetite, malaise, and headache. Levetiracetam is contraindicated in patients who are hypersensitive to levetiracetam or allergic to pyrrolizidine derivatives, or any of the other ingredients, and breastfeeding is not recommended for patients taking the drug. During the period of taking medication, you should avoid jobs that require alertness or coordination, such as driving, working at heights, operating machinery, etc. Do not stop taking the medication suddenly, so as not to increase seizures, and if there is any discomfort, consult a doctor in time, expect not to be negligent, so as not to delay the condition.