Stimulants
4-Methylaminorex (4-MAR)
Street names: U4Euh, Euphoria, Ice (mistakenly)
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Long-lasting (8–12 h) amphetamine-like euphoria and energy
⚠Key risks
- Pulmonary hypertension linked to aminorex family
- Insomnia, anxiety, vasoconstriction
✚Overdose signs
- Chest pain, hypertension
- Racing heart
- Severe agitation
📋Quick facts
Also known asU4Euh, Euphoria, Ice (mistakenly)
CategoryStimulants
Schedule / classSchedule I (US)
AppearanceWhite crystalline powder or small pellets
Street price~$20–$50 per gram (rare)
Legal statusSchedule I (US); controlled EU/CA/AU
Last updated2026-09-12
Sources: DEA, TripSit
Category comparison — Stimulants
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| 4-Methylaminorex (4-MAR) | Schedule I | Pulmonary hypertension linked to aminorex family; Insomnia, anxiety, vasoconstriction | ~$20–$50 per gram |
| Cocaine | Schedule II | Heart attack/stroke even in young users; Severe addiction — craving cycle | ~$60–$120 per gram |
| Speed (amphetamine paste) | Schedule II | Insomnia, anxiety, paranoia; Heart strain and overheating | ~$10–$40 per gram |
| Methamphetamine | Schedule II | Addiction — among the most addictive drugs known; Meth mouth, skin sores, psychosis | ~$20–$100 per gram |
| Adderall (amphetamine salts) | Schedule II | Dependence and tolerance; Cardiovascular strain | ~$3–$15 per 30 mg tablet |
| Adderall XR | Schedule II | Same as Adderall; long duration masks sleep debt; Beads snorted bypass XR mechanism | ~$5–$20 per 30 mg capsule |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does 4-Methylaminorex (4-MAR) look like?
White crystalline powder or small pellets
What are the signs of a 4-Methylaminorex (4-MAR) overdose?
Chest pain, hypertension; Racing heart; Severe agitation Call emergency services immediately.
How addictive is it?
Pulmonary hypertension linked to aminorex family Dependence can develop with regular use.