Lamotrigine
Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Prescription mood stabilizer and anticonvulsant approved for maintenance treatment of bipolar I disorder to delay episodes of depression and mania, as well as for epilepsy. Particularly effective for bipolar depression prevention. Requires very slow dose titration over 6+ weeks to minimize the risk of life-threatening Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Dosage must be determined by your prescribing physician.
Exploratory record, not a reviewed medical publication.
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This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Prescription mood stabilizer and anticonvulsant approved for maintenance treatment of bipolar I disorder to delay episodes of depression and mania, as well as for epilepsy. NutriStack rates the supporting evidence as strong. Common adult dosing is 25–400 mg daily; requires slow titration over 6+ weeks (as prescribed by your physician), though a prescriber sets the actual dose. This profile indexes 11 sources.
The bottom line
Evidence rating strong. Most-documented uses: bipolar depression prevention, bipolar episode delay, seizure control. 11 sources indexed (2009–2025), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Blocks voltage-sensitive sodium channels, stabilizing neuronal membranes and inhibiting the presynaptic release of glutamate and aspartate (excitatory amino acids). May also modulate calcium channels and serotonin reuptake. The reduction of glutamatergic excitotoxicity is thought to contribute to its mood-stabilizing effects.
Dosing & protocol.
Can be taken with or without food. Very slow dose titration required. Concurrent valproate significantly increases lamotrigine levels (reduce dose by half); carbamazepine and other enzyme inducers reduce levels.
Full safety detail.
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
7- 1Rechallenge of Lamotrigine After Rash: A Systematic ReviewPMIDRiva HR, Zheng S, Sohail N et al. · The Journal of clinical psychiatry · 2025
Riva HR, Zheng S, Sohail N et al.. Rechallenge of Lamotrigine After Rash: A Systematic Review. The Journal of clinical psychiatry. 2025
- 2The efficacy of lamotrigine in bipolar disorder: A systematic review and meta-analysisPMIDHaenen N, Kamperman AM, Prodan A et al. · Bipolar disorders · 2024
Haenen N, Kamperman AM, Prodan A et al.. The efficacy of lamotrigine in bipolar disorder: A systematic review and meta-analysis. Bipolar disorders. 2024
- 3Efficacy and safety of lamotrigine in pediatric mood disorders: A systematic reviewPMIDKumar R, Garzon J, Yuruk D et al. · Acta psychiatrica Scandinavica · 2023
Kumar R, Garzon J, Yuruk D et al.. Efficacy and safety of lamotrigine in pediatric mood disorders: A systematic review. Acta psychiatrica Scandinavica. 2023
- 4Ketamine and Lamotrigine Combination in Psychopharmacology: Systematic ReviewPMIDWilkowska A, Wiglusz MS, Jakuszkowiak-Wojten K et al. · Cells · 2022
Wilkowska A, Wiglusz MS, Jakuszkowiak-Wojten K et al.. Ketamine and Lamotrigine Combination in Psychopharmacology: Systematic Review. Cells. 2022
- 5Sources of lamotrigine pharmacokinetic variability: A systematic review of population pharmacokinetic analysesPMIDMethaneethorn J, Leelakanok N · Seizure · 2020
Methaneethorn J, Leelakanok N. Sources of lamotrigine pharmacokinetic variability: A systematic review of population pharmacokinetic analyses. Seizure. 2020
- 6Safety of lamotrigine in paediatrics: a systematic reviewPMIDEgunsola O, Choonara I, Sammons HM · BMJ open · 2015
Egunsola O, Choonara I, Sammons HM. Safety of lamotrigine in paediatrics: a systematic review. BMJ open. 2015
- 7Lamotrigine for treatment of bipolar depression: independent meta-analysis and meta-regressionSource linkedPMIDGeddes JR, Calabrese JR, Goodwin GM · Br J Psychiatry · 2009
Reference material
4- 8Bowden CL et al. A placebo-controlled 18-month trial of lamotrigine and lithium maintenance treatment in recently manic or hypomanic patients with bipolar I disorder. Arch Gen Psychiatry. 2003.Source linkedPMID
- 9Geddes JR et al. Lamotrigine for treatment of bipolar depression: independent meta-analysis and meta-regression of individual patient data. Br J Psychiatry. 2009.Source linkedPMID
- 10Yalin N et al. Treatment of bipolar depression: results from a comprehensive network meta-analysis and updated systematic review. Eur Neuropsychopharmacol. 2026.Source linkedPMID
- 11Alyahya B, Friesen M, Nauche B et al.. Acute lamotrigine overdose: a systematic review of published adult and pediatric cases. Clinical toxicology (Philadelphia, Pa.). 2018Source linkedPMID
Common questions.
Quick answers about Lamotrigine, drawn from the data on this page.
What is Lamotrigine?
Prescription mood stabilizer and anticonvulsant approved for maintenance treatment of bipolar I disorder to delay episodes of depression and mania, as well as for epilepsy. Particularly effective for bipolar depression prevention. Requires very slow dose titration over 6+ weeks to minimize the risk of life-threatening Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Dosage must be determined by your prescribing physician.
What is Lamotrigine used for?
Commonly cited benefits of Lamotrigine include: Bipolar depression prevention; Bipolar episode delay; Seizure control; Mood stabilization; Generally well tolerated. NutriStack rates the overall evidence as strong.
What is a typical dose of Lamotrigine?
A typical adult dose of Lamotrigine is 25–400 mg daily; requires slow titration over 6+ weeks (as prescribed by your physician). The commonly recommended form is Tablet, chewable tablet, orally disintegrating tablet, or extended-release tablet. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Lamotrigine?
Reported side effects include rash (potentially serious), headache, dizziness, nausea, insomnia, blurred vision. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Lamotrigine?
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
Lamotrigine in NutriStack.
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