Cocaine and Nicotine, a conflict.
Using cocaine and nicotine together compounds sympathetic stimulation, raising heart rate, blood pressure, and coronary vasoconstriction, which increases cardiovascular strain and the risk of cardiac events.
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
- Pair type
- Conflict
- Evidence (highest tier)
- Moderate
- Source citations
- 1 source
- Stack Score effect
- −10 to your Stack Score (per scored conflict row).
- Scope
- Supplement × Supplement
- Last verified
- May 30, 2026
Conflict · Moderate evidence
Conflict
What is happening. Using cocaine and nicotine together compounds sympathetic stimulation, raising heart rate, blood pressure, and coronary vasoconstriction, which increases cardiovascular strain and the risk of cardiac events.
Mechanism. Both are sympathomimetic: cocaine blocks catecholamine reuptake and nicotine triggers catecholamine release, producing additive coronary vasoconstriction, tachycardia, and increased myocardial oxygen demand.
Recommendation. Do not combine. The two together place additive strain on the heart and coronary arteries. Seek medical advice for stimulant use and stop if chest pain or palpitations occur.
Stack Score
How this pair moves the number.
Effect on the composite score
If both Cocaine and Nicotine 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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