Combination

Mixing 2C-T-x and Opioids

PsychedelicOpioid
2C-T-x also called
2c-t-2, 2c-t-7, 2c-t-21
Opioids also called
opiate, opiates, opioid, heroin, dope, smack
Verdict

Low risk, no synergy

No expected interactions, some opioids have serotonin action, and could lead to Serotonin Syndrome or a seizure. These are pretty much only to Pentazocine, Methadone, Tramadol, Tapenatdol.

Can you mix 2C-T-x and Opioids?

Neither substance is expected to meaningfully change the other. Both still carry their own individual risks.

Opioids
Full agonists — heroin, oxycodone, morphine
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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Rated low / no synergy. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.