Mixing Caffeine and Methamphetamine (meth)
Caution
Two stimulants strain the heart and can make you anxious and uncomfortable. Skip the caffeine, or keep it light.
This combination of stimulants is not generally necessary and may increase strain on the heart, as well as potentially causing anxiety and greater physical discomfort.
The risk here is to the body — breathing, heart, temperature or organs. Set limits before you start, because this kind of harm does not announce itself in time to react.
Headspace vs physical riskCan you mix Caffeine and Methamphetamine (meth)?
MixSafe rates mixing Caffeine and Methamphetamine as "Caution" — carries risk that is worth understanding before combining. Reduce doses and do not use alone. No interaction specific to Caffeine and Methamphetamine is documented; this is the default for Amphetamines. Source: TripSit drug combination chart, retrieved 2026-08-20. Educational information, not medical advice.
This is a class-level answer, inherited from Amphetamines. Nothing specific to this exact pair is documented, so treat it as the default for the class rather than a measurement of these two drugs together.
- Methamphetamine
- Roughly twice as potent, and lasts three to four times as long
- Caffeine also called
- coffee, energy drink, espresso, pre-workout, red bull, monster
- Methamphetamine also called
- meth, crystal, crystal meth, ice, tina, shard
TripSit drug combination chart, retrieved 2026-08-20. View the dataset.
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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.
Open this in the checkerRelated combinations
All combinations →Rated caution. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.