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 Panax ginseng and caffeine can be mildly stimulating, and combining them may amplify CNS and cardiovascular stimulation in sensitive individuals.
Mechanism. Additive sympathomimetic and CNS-stimulant effects; ginsenosides plus caffeine may compound increases in heart rate, blood pressure, and arousal.
Recommendation. Use caution when combining ginseng with high caffeine intake. Limit total stimulant load and avoid late-day dosing to protect sleep. Monitor for jitteriness, palpitations, or elevated blood pressure.
Stack Score
How it moves the number.
Effect on the composite score
If both Caffeine and Panax Ginseng 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- 1Coon JT, Ernst E. Panax ginseng: a systematic review of adverse effects and drug interactions. Drug Safety. 2002.Needs sourceNo link