Levetiracetam Dosing for Seizure Management

Recommended Dosing by Clinical Indication

The American Academy of Neurology recommends administering levetiracetam 40 mg/kg IV bolus (maximum 2,500 mg) in addition to benzodiazepines for acute seizure management, followed by maintenance dosing of 15-30 mg/kg IV every 12 hours (maximum 1,500 mg per dose) 1

For non-convulsive status epilepticus, the Neurocritical Care Society suggests a loading dose of 40 mg/kg IV bolus (maximum 2,500 mg) in addition to lorazepam 1
For convulsive status epilepticus, the Neurocritical Care Society recommends a loading dose of 40 mg/kg IV bolus (maximum 2,500 mg) in addition to lorazepam 1
The American Epilepsy Society advises maintenance dosing of 15 mg/kg IV every 12 hours (maximum 1,500 mg) for non-convulsive SE, and 30 mg/kg IV every 12 hours (maximum 1,500 mg per dose) for convulsive SE 1

The American Academy of Neurology warns against underdosing in status epilepticus, recommending the full 40 mg/kg loading dose rather than lower prophylactic doses 1
The Neurocritical Care Society recommends continuing maintenance dosing for at least 3 doses of lorazepam plus ongoing levetiracetam after seizure termination 1

The American Academy of Neurology recommends 20-60 mg/kg IV loading doses for status epilepticus, which are safe and effective, with adult loading doses of 2500 mg IV showing 83% seizure termination within 24 hours 2
The National Comprehensive Cancer Network recommends 10 mg/kg (maximum 500 mg per dose) every 12 hours for 30 days following CAR T-cell therapy infusion for seizure prevention, not treatment 3

The National Kidney Foundation recommends renal adjustment, as dose modifications are necessary in renal dysfunction 3