Opioids
MT-45 (IC-6)
Street names: MT-45, IC-6
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Racemic opioid with unusual profile — analgesia plus stimulant-like activity
⚠Key risks
- SIGNATURE HARM: audiovestibular damage — users developed deafness and balance disorders (ototoxicity unique among opioids)
- Respiratory depression
- Sweden reported poisonings; scheduling followed
✚Overdose signs
- Respiratory depression
- Sedation
- Hearing/balance disturbance (signature)
📋Quick facts
Also known asMT-45, IC-6
CategoryOpioids
Schedule / classSchedule I (US, 2018); controlled EU
AppearanceWhite powder — 1970s compound revived as 'legal opioid'
Street priceResidual grey-market
Legal statusSchedule I US; controlled EU/UK
Last updated2026-09-18
Sources: DEA, EMCDDA
Category comparison — Opioids
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| MT-45 (IC-6) | Schedule I | SIGNATURE HARM: audiovestibular damage — users developed deafness and balance disorders (ototoxicity unique among opioids); Respiratory depression | Residual grey-market |
| AH-7921 | Schedule I | Multiple UK deaths 2014–2015 (detected alongside etizolam and other NPS); Standard opioid overdose profile | Residual |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does MT-45 (IC-6) look like?
White powder — 1970s compound revived as 'legal opioid'
What are the signs of a MT-45 (IC-6) overdose?
Respiratory depression; Sedation; Hearing/balance disturbance (signature) Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.
How addictive is it?
SIGNATURE HARM: audiovestibular damage — users developed deafness and balance disorders (ototoxicity unique among opioids) Dependence can develop with regular use.