Combination

Mixing Amphetamines and DXM

StimulantDissociative
Amphetamines also called
adderall, speed, amphetamine, dexedrine, vyvanse, lisdexamfetamine
DXM also called
robo, robitussin, robotussin, syrup, dex, cough syrup
Verdict

Unsafe

Both substances raise heart rate, in extreme cases, panic attacks caused by these drugs have led to more serious heart issues.

Risk / Physical + headspace

This combination carries bodily risk and can go badly psychologically. The headspace part often arrives first and makes the physical part harder to notice.

Can you mix Amphetamines and DXM?

Risk of serious physical or psychological harm. Not recommended under any circumstances.

Amphetamines
Prescription and street speed — Adderall, dexamphetamine
Source

TripSit drug combination chart, retrieved 2026-08-20. View the dataset.

Checking more than two?

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