Combination

Mixing DXM and MXE

DissociativeDissociative
DXM also called
robo, robitussin, robotussin, syrup, dex, cough syrup
MXE also called
methoxetamine
Verdict

Unsafe

There is a risk of serotonin syndrome when combining DXM with MXE, due to DXM and MXE both being SRI’s. MXE and DXM having notable affinities for the serotonin transporter.

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 DXM and MXE?

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

Source

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.

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Related combinations

DXM withWhat not to mix with DXM →
MXE withWhat not to mix with MXE →
All combinations →

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