From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Supplement
Last verified
June 4, 2026
CautionEmerging evidence
What is happening. Both may increase serotonergic tone and could raise serotonin-toxicity risk when combined with serotonergic medications.
Mechanism. Potential additive serotonergic effects.
Recommendation. Avoid the combination if taking SSRIs, SNRIs, MAO inhibitors, linezolid, tramadol, or triptans.
Stack Score
How it moves the number.
Effect on the composite score
If both 5-HTP and Saffron Extract 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- 1Lopresti AL and Drummond PD. Saffron depression meta-analysis. Journal of Integrative Medicine. 2020.Needs sourceNo link