Combination

Mixing Caffeine and Nicotine

StimulantStimulant
Caffeine also called
coffee, energy drink, espresso, pre-workout
Nicotine also called
cigarettes, cigarette, tobacco, vape, vaping, juul
Verdict

Low risk, increased effect

Additive stimulation — increased heart rate, jitteriness and anxiety. Nicotine also speeds caffeine metabolism, so smokers often need more caffeine for the same effect and feel it more strongly after quitting.

Can you mix Caffeine and Nicotine?

Low risk of harm, but the effects amplify each other. Doses that are fine alone can be far too much together.

Source

Checking more than two?

Combinations of three or more carry risks that no pair-by-pair chart can show. The checker rates every pair at once and flags the whole-mix ones on top.

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Related combinations

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Rated low / synergy. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.