Carbamazepine
Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Carbamazepine is a first-generation antiepileptic used for partial seizures with complex symptomatology, generalized tonic-clonic seizures, trigeminal neuralgia, and as a mood stabilizer in bipolar disorder. It is highly effective but requires careful monitoring due to serious hematologic and dermatologic risks.
Exploratory record, not a reviewed medical publication.
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What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Carbamazepine is a first-generation antiepileptic used for partial seizures with complex symptomatology, generalized tonic-clonic seizures, trigeminal neuralgia, and as a mood stabilizer in bipolar disorder. NutriStack rates the supporting evidence as strong. Common adult dosing is 200 mg twice daily, titrated to 800-1,200 mg/day in divided doses (as prescribed by your physician), though a prescriber sets the actual dose. With long-term use it can deplete folate, vitamin d, calcium. This profile indexes 10 sources.
The bottom line
Evidence rating strong. Most-documented uses: effective for focal and generalized tonic-clonic seizures, first-line treatment for trigeminal neuralgia, mood stabilization in bipolar disorder. 10 sources indexed (2017–2024), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Blocks voltage-gated sodium channels by binding to their inactivated state, reducing repetitive neuronal firing. This stabilizes hyperexcited neural membranes, inhibits repetitive action potentials, and reduces synaptic transmission of excitatory impulses. Also has minor effects on calcium channels and glutamate release.
Dosing & protocol.
Take with food to reduce GI upset and improve absorption consistency; highly protein-bound (~75%), numerous drug-drug interactions due to CYP3A4 autoinduction
What it depletes.
Nutrients this medication can lower over time, and what to replace.
Folate
SignificantCarbamazepine lowers folate through enzyme induction and altered intestinal handling during chronic therapy.
Vitamin D
SignificantEnzyme induction increases vitamin D breakdown, contributing to osteopenia with long-term use.
Calcium
SignificantReduced vitamin D activity and chronic anticonvulsant use lower calcium balance and bone density.
Vitamin K
ModerateLong-term anticonvulsant enzyme induction may impair vitamin K-dependent pathways in susceptible users.
Biotin
ModerateChronic carbamazepine use has been associated with lower biotin status.
Full safety detail.
Side effects
- Dizziness and ataxia
- Diplopia and blurred vision
- Nausea and vomiting
- Drowsiness
- Hyponatremia (SIADH)
- Skin rash
- Elevated liver enzymes
- Leukopenia
Contraindications
- Known hypersensitivity to carbamazepine or tricyclic compounds1,2
- History of bone marrow depression
- Concurrent use with MAO inhibitors (discontinue MAOIs at least 14 days prior)
- Concurrent use with delavirdine or other non-nucleoside reverse transcriptase inhibitors
- HLA-B*1502 allele carriers (high risk of SJS/TEN)6
- Hepatic porphyria
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
6- 1Pharmacogenetics of Carbamazepine: A Systematic Review on CYP3A4 and CYP3A5 PolymorphismsPMIDRiffi R, Boughrara W, Chentouf A et al. · CNS & neurological disorders drug targets · 2024
Riffi R, Boughrara W, Chentouf A et al.. Pharmacogenetics of Carbamazepine: A Systematic Review on CYP3A4 and CYP3A5 Polymorphisms. CNS & neurological disorders drug targets. 2024
- 2Meta-analysis and sequential analysis of acupuncture compared to carbamazepine in the treatment of trigeminal neuralgiaPMIDWei L, Han H, Meng J et al. · World journal of clinical cases · 2024
Wei L, Han H, Meng J et al.. Meta-analysis and sequential analysis of acupuncture compared to carbamazepine in the treatment of trigeminal neuralgia. World journal of clinical cases. 2024
- 3Association between SCN1A polymorphism and carbamazepine responsiveness in epilepsy: A meta-analysisPMIDZhang X, Liu J, Ye J · Epilepsy research · 2021
Zhang X, Liu J, Ye J. Association between SCN1A polymorphism and carbamazepine responsiveness in epilepsy: A meta-analysis. Epilepsy research. 2021
- 4Impact of carbamazepine on vitamin D levels: A meta-analysisPMIDLoPinto-Khoury C, Brennan L, Mintzer S · Epilepsy research · 2021
LoPinto-Khoury C, Brennan L, Mintzer S. Impact of carbamazepine on vitamin D levels: A meta-analysis. Epilepsy research. 2021
- 5Association between EPHX1 polymorphisms and carbamazepine metabolism in epilepsy: a meta-analysisPMIDZhao GX, Shen ML, Zhang Z et al. · International journal of clinical pharmacy · 2019
Zhao GX, Shen ML, Zhang Z et al.. Association between EPHX1 polymorphisms and carbamazepine metabolism in epilepsy: a meta-analysis. International journal of clinical pharmacy. 2019
- 6Association between the HLA-B alleles and carbamazepine-induced SJS/TEN: A meta-analysisPMIDWang Q, Sun S, Xie M et al. · Epilepsy research · 2017
Wang Q, Sun S, Xie M et al.. Association between the HLA-B alleles and carbamazepine-induced SJS/TEN: A meta-analysis. Epilepsy research. 2017
Reviews & position papers
1- 7Effects of Carbamazepine in Bivalves: A ReviewPMIDAlmeida Â, Esteves VI, Soares AMVM et al. · Reviews of environmental contamination and toxicology · 2021
Almeida Â, Esteves VI, Soares AMVM et al.. Effects of Carbamazepine in Bivalves: A Review. Reviews of environmental contamination and toxicology. 2021
Reference material
3- 8Marson AG et al. The SANAD study of effectiveness of carbamazepine, gabapentin, lamotrigine, oxcarbazepine, or topiramate for treatment of partial epilepsy. Lancet. 2007;369(9566):1000-1015.Source linkedPMID
- 9Ferrell PB Jr, McLeod HL. Carbamazepine, HLA-B*1502 and risk of Stevens-Johnson syndrome and toxic epidermal necrolysis: US FDA recommendations. Pharmacogenomics. 2008;9(10):1543-1546.Source linkedPMID
- 10Ceron-Litvoc D et al. Comparison of carbamazepine and lithium in treatment of bipolar disorder: a systematic review of randomized controlled trials. Hum Psychopharmacol. 2009;24(1):19-28.Source linkedPMID
Common questions.
Quick answers about Carbamazepine, drawn from the data on this page.
What is Carbamazepine?
Carbamazepine is a first-generation antiepileptic used for partial seizures with complex symptomatology, generalized tonic-clonic seizures, trigeminal neuralgia, and as a mood stabilizer in bipolar disorder. It is highly effective but requires careful monitoring due to serious hematologic and dermatologic risks.
What is Carbamazepine used for?
Commonly cited benefits of Carbamazepine include: Effective for focal and generalized tonic-clonic seizures; First-line treatment for trigeminal neuralgia; Mood stabilization in bipolar disorder; Long clinical track record. NutriStack rates the overall evidence as strong.
What is a typical dose of Carbamazepine?
A typical adult dose of Carbamazepine is 200 mg twice daily, titrated to 800-1,200 mg/day in divided doses (as prescribed by your physician). The commonly recommended form is Extended-release tablets preferred to reduce peak-trough fluctuations. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Carbamazepine?
Reported side effects include dizziness and ataxia, diplopia and blurred vision, nausea and vomiting, drowsiness, hyponatremia (siadh), skin rash. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Carbamazepine?
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
Carbamazepine in NutriStack.
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