NutriStack
Carbamazepine and Ginkgo Biloba, a conflict.
Ginkgo biloba has case reports of precipitating seizures in people with previously controlled epilepsy. That directly conflicts with carbamazepine's purpose when it is being used for seizure control, and it may also complicate care in people taking carbamazepine for neuralgia or mood stabilization who have seizure vulnerability. The risk is avoidable and is higher with a seizure history, missed antiseizure doses, sleep deprivation, alcohol, or products with poorly controlled ginkgotoxin content.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Carbamazepine and Ginkgo Biloba
- Pair type
- Conflict
- Evidence (highest tier)
- Emerging
- Source citations
- 2 sources
- Stack Score effect
- −10 to your Stack Score (per scored conflict row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Conflict · Emerging evidence
Conflict
What is happening. Ginkgo biloba has case reports of precipitating seizures in people with previously controlled epilepsy. That directly conflicts with carbamazepine's purpose when it is being used for seizure control, and it may also complicate care in people taking carbamazepine for neuralgia or mood stabilization who have seizure vulnerability. The risk is avoidable and is higher with a seizure history, missed antiseizure doses, sleep deprivation, alcohol, or products with poorly controlled ginkgotoxin content.
Mechanism. Ginkgo products may lower seizure threshold; ginkgotoxin can antagonize vitamin B6-dependent GABA synthesis, and some reports also raise concern for herb-drug effects on antiseizure medication exposure. This pharmacodynamic seizure-threshold effect can oppose carbamazepine's sodium-channel antiseizure activity.
Recommendation. Avoid ginkgo biloba if you take carbamazepine for epilepsy or have any seizure history. If you already started ginkgo and notice breakthrough seizures, auras, twitching, confusion spells, or loss of awareness, stop it and seek medical advice urgently. Do not change carbamazepine dosing without your prescriber.
Stack Score
How this pair moves the number.
Effect on the composite score
If both Carbamazepine and Ginkgo Biloba are in the same stack, this pair applies −10 to your Stack Score (per scored conflict row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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