Mixing DXM and Opioids
- DXM also called
- robo, robitussin, robotussin, syrup, dex, cough syrup
- Opioids also called
- opiate, opiates, opioid, heroin, dope, smack
Dangerous
CNS depression, difficult breathing, heart issues, hepatoxic, just very unsafe combination all around. Additionally if one takes DXM, their tolerance of opiates goes down slightly, thus causing additional synergistic effects.
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 Opioids?
High risk of death or life-changing injury. Do not combine.
- Opioids
- Full agonists — heroin, oxycodone, morphine
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 dangerous. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.