Stimulants
4-FA (4-fluoroamphetamine)
Street names: 4-FMP, Palladium
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- MDMA-like empathy + amphetamine energy, 4–6 h
⚠Key risks
- Serotonin neurotoxicity suspected (like MDMA analogues)
- Overheating in clubs
✚Overdose signs
- Racing heart, hypertension
- Overheating
- Serotonin-syndrome signs: agitation, clonus
📋Quick facts
Also known as4-FMP, Palladium
CategoryStimulants
Schedule / classAnalogue prosecutions (US); banned NL/UK/others
AppearanceWhite/off-white powder or capsules
Street price~$10–$30 per gram
Legal statusAnalogue Act (US); controlled NL/UK/DE/others — check locally
Last updated2026-09-12
Sources: EMCDDA, TripSit
Category comparison — Stimulants
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| 4-FA (4-fluoroamphetamine) | Analogue prosecutions | Serotonin neurotoxicity suspected (like MDMA analogues); Overheating in clubs | ~$10–$30 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 — see our pressed pill guide.
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Profiles are reviewed against NIDA/DEA/EMCDDA sources. See something off? Submit a correction — it goes straight to our editorial queue.