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. Melatonin can add sedation, vivid dreams, or nighttime confusion in dementia patients taking galantamine.
Mechanism. Additive CNS effects in a population vulnerable to delirium and falls.
Recommendation. Use cautiously and monitor falls, confusion, and morning sedation.
Stack Score
How it moves the number.
Effect on the composite score
If both Galantamine and Melatonin 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- 1U.S. National Library of Medicine. Galantamine tablets US Prescribing Information. 2026.Needs sourceNo link