Estimulantes
4-MMC crystals
Street names: Crystal meph, Mephedrone crystal
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Idéntico a la mefedrona – euforia, energía, empatía
⚠Key risks
- Daños idénticos a la mefedrona; las afirmaciones de pureza "cristal" no son verificables
✚Overdose signs
- Corazón de Carrera
- sobrecalentamiento
- Agitación severa
Comparación de categoría — Estimulantes
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| 4-MMC crystals | Schedule I | Identical harms to mephedrone; 'crystal' purity claims are unverifiable | ~$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-MMC crystals look like?
Fragmentos cristalinos translúcidos / blancos vendidos como 'mefedrona pura'
What are the signs of a 4-MMC crystals overdose?
Corazón de Carrera; sobrecalentamiento; Agitación severa Call emergency services immediately.
How addictive is it?
Daños idénticos a la mefedrona; las afirmaciones de pureza "cristal" no son verificables Dependence can develop with regular use.