A 43-year-old member asked:

How much time after stopping keppra (levetiracetam) will it be completely out of system?

1 doctor answer2 doctors weighed in
Dr. Ilene Ruhoy
Neurology 23 years experience
Up to 3 days.: Elimination half life is 6-8 hours in adults, 11-12 in the elderly, and 5-6 in children. To be completely out of system may take up to 3 days depending on age and individual metabolism profile.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated May 25, 2016


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.