Mixing Amphetamines and Caffeine
- Amphetamines also called
- adderall, speed, amphetamine, dexedrine, vyvanse, lisdexamfetamine
- Caffeine also called
- coffee, energy drink, espresso, pre-workout
Caution
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.
Can you mix Amphetamines and Caffeine?
Carries risk that is worth understanding before combining. Reduce doses and do not use alone.
- Amphetamines
- Prescription and street speed — Adderall, dexamphetamine
TripSit drug combination chart, retrieved 2026-08-20. View the dataset.
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.