Levetiracetam
Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Levetiracetam is a broad-spectrum antiepileptic drug used as monotherapy or adjunctive therapy for partial-onset seizures, myoclonic seizures in juvenile myoclonic epilepsy, and primary generalized tonic-clonic seizures. It has a favorable side-effect profile compared to older antiepileptics and does not require routine serum drug level monitoring.
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What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Levetiracetam is a broad-spectrum antiepileptic drug used as monotherapy or adjunctive therapy for partial-onset seizures, myoclonic seizures in juvenile myoclonic epilepsy, and primary generalized tonic-clonic seizures. NutriStack rates the supporting evidence as strong. Common adult dosing is 500 mg twice daily, titrated up to 1,500 mg twice daily (as prescribed by your physician), though a prescriber sets the actual dose. This profile indexes 10 sources.
The bottom line
Evidence rating strong. Most-documented uses: broad-spectrum seizure control, favorable drug interaction profile, rapid titration to therapeutic dose. 10 sources indexed (2018–2023), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Binds to synaptic vesicle protein 2A (SV2A) in the brain, modulating neurotransmitter release. Unlike older antiepileptics, it does not act primarily on sodium channels or GABA receptors. By binding SV2A, it reduces excessive synchronous neuronal firing and inhibits burst firing without affecting normal neurotransmission.8
Dosing & protocol.
Rapidly and almost completely absorbed; food does not significantly affect bioavailability but may slow absorption rate3
Full safety detail.
Side effects
- Somnolence and fatigue
- Behavioral changes (irritability, aggression, mood swings)
- Dizziness
- Headache
- Nasopharyngitis
- Decreased appetite
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
5- 1Current evidence for adjunct pyridoxine (vitamin B6) for the treatment of behavioral adverse effects associated with levetiracetam: A systematic reviewPMIDBesag FMC, Vasey MJ, Sen A · Epilepsy & behavior : E&B · 2023
Besag FMC, Vasey MJ, Sen A. Current evidence for adjunct pyridoxine (vitamin B6) for the treatment of behavioral adverse effects associated with levetiracetam: A systematic review. Epilepsy & behavior : E&B. 2023
- 2The safety of rapid infusion levetiracetam: A systematic reviewPMIDJense A, Douville A, Weiss A · Pharmacotherapy · 2022
Jense A, Douville A, Weiss A. The safety of rapid infusion levetiracetam: A systematic review. Pharmacotherapy. 2022
- 3Pyridoxine supplementation for levetiracetam-related neuropsychiatric adverse events: A systematic reviewPMIDRomoli M, Perucca E, Sen A · Epilepsy & behavior : E&B · 2020
Romoli M, Perucca E, Sen A. Pyridoxine supplementation for levetiracetam-related neuropsychiatric adverse events: A systematic review. Epilepsy & behavior : E&B. 2020
- 4Levetiracetam and cutaneous adverse reactions: A systematic review of descriptive studiesPMIDRashid M, Rajan AK, Chhabra M et al. · Seizure · 2020
Rashid M, Rajan AK, Chhabra M et al.. Levetiracetam and cutaneous adverse reactions: A systematic review of descriptive studies. Seizure. 2020
- 5Efficacy and safety of levetiracetam for migraine prophylaxis: A systematic reviewPMIDWatkins AK, Gee ME, Brown JN · Journal of clinical pharmacy and therapeutics · 2018
Watkins AK, Gee ME, Brown JN. Efficacy and safety of levetiracetam for migraine prophylaxis: A systematic review. Journal of clinical pharmacy and therapeutics. 2018
Reference material
5- 6Lyseng-Williamson KA. Levetiracetam: a review of its use in epilepsy. Drugs. 2011;71(4):489-514.Source linkedPMID
- 7Mbizvo GK et al. Levetiracetam add-on for drug-resistant focal epilepsy: an updated Cochrane Review. Cochrane Database Syst Rev. 2012;(9):CD001901.Source linkedPMID
- 8Lynch BA et al. The synaptic vesicle protein SV2A is the binding site for the antiepileptic drug levetiracetam. Proc Natl Acad Sci USA. 2004;101(26):9861-9866.Source linkedPMID
- 9Steinhoff BJ, Klein P, Klitgaard H et al.. Behavioral adverse events with brivaracetam, levetiracetam, perampanel, and topiramate: A systematic review. Epilepsy & behavior : E&B. 2021Source linkedPMID
- 10Fang T, Valdes E, Frontera JA. Levetiracetam for Seizure Prophylaxis in Neurocritical Care: A Systematic Review and Meta-analysis. Neurocritical care. 2022Source linkedPMID
Common questions.
Quick answers about Levetiracetam, drawn from the data on this page.
What is Levetiracetam?
Levetiracetam is a broad-spectrum antiepileptic drug used as monotherapy or adjunctive therapy for partial-onset seizures, myoclonic seizures in juvenile myoclonic epilepsy, and primary generalized tonic-clonic seizures. It has a favorable side-effect profile compared to older antiepileptics and does not require routine serum drug level monitoring.
What is Levetiracetam used for?
Commonly cited benefits of Levetiracetam include: Broad-spectrum seizure control; Favorable drug interaction profile; Rapid titration to therapeutic dose; Available in IV and oral formulations. NutriStack rates the overall evidence as strong.
What is a typical dose of Levetiracetam?
A typical adult dose of Levetiracetam is 500 mg twice daily, titrated up to 1,500 mg twice daily (as prescribed by your physician). The commonly recommended form is Oral tablets, oral solution, or IV infusion. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Levetiracetam?
Reported side effects include somnolence and fatigue, behavioral changes (irritability, aggression, mood swings), dizziness, headache, nasopharyngitis, decreased appetite. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Levetiracetam?
NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Use this with your stack
Levetiracetam in NutriStack.
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