From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Prescription
Last verified
June 4, 2026
CautionEmerging evidence
What is happening. Ginkgo has seizure case reports, and phenothiazines may lower seizure threshold in susceptible patients.
Mechanism. Potential additive seizure-threshold lowering.
Recommendation. Avoid or use cautiously in seizure disorders or with other seizure-threshold-lowering exposures.
Stack Score
How it moves the number.
Effect on the composite score
If both Ginkgo Biloba and Prochlorperazine are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1Flake ZA et al. Management of nausea and vomiting in adults. American Family Physician. 2015.Needs sourceNo link