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Stimulants

4-Methylaminorex (4-MAR)

Street names: U4Euh, Euphoria, Ice (mistakenly)

4-Methylaminorex (4-MAR) — White crystalline powder or small pellets

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

SubstanceClassTop risksStreet price
4-Methylaminorex (4-MAR)Schedule IPulmonary hypertension linked to aminorex family; Insomnia, anxiety, vasoconstriction~$20–$50 per gram
CocaineSchedule IIHeart attack/stroke even in young users; Severe addiction — craving cycle~$60–$120 per gram
Speed (amphetamine paste)Schedule IIInsomnia, anxiety, paranoia; Heart strain and overheating~$10–$40 per gram
MethamphetamineSchedule IIAddiction — among the most addictive drugs known; Meth mouth, skin sores, psychosis~$20–$100 per gram
Adderall (amphetamine salts)Schedule IIDependence and tolerance; Cardiovascular strain~$3–$15 per 30 mg tablet
Adderall XRSchedule IISame 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 — see our pressed pill guide.