Empathogens
TFMPP (Trifluoromethylphenylpiperazine)
Street names: TFMPP, 3-TFMPP, Legal X'
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Mild MDMA-like stimulation/euphoria
- Serotonin release
⚠Key risks
- Sold as 'legal X' — the piperazine epidemic of the 2000s
- Serotonin syndrome risk with real MDMA or antidepressants
- Headaches, nausea
- Seizures documented
✚Overdose signs
- Serotonin syndrome
- Seizures
- Severe headache, nausea
📋Quick facts
Also known asTFMPP, 3-TFMPP, Legal X'
CategoryEmpathogens
Schedule / classSchedule I analog; controlled EU/CA/AU
AppearancePills/powder — sold with BZP as 'legal ecstasy'
Street price~$5–$15 per pill (residual)
Legal statusAnalogue US; controlled EU/CA/AU
Last updated2026-09-17
Sources: EMCDDA, NIDA
Category comparison — Empathogens
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| TFMPP (Trifluoromethylphenylpiperazine) | Schedule I analog; controlled EU/CA/AU | Sold as 'legal X' — the piperazine epidemic of the 2000s; Serotonin syndrome risk with real MDMA or antidepressants | ~$5–$15 per pill |
| MDMA | Schedule I | Overheating + dehydration (or fatal water intoxication); Serotonin depletion — multi-day comedown | ~$10–$40 per pill |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does TFMPP (Trifluoromethylphenylpiperazine) look like?
Pills/powder — sold with BZP as 'legal ecstasy'
What are the signs of a TFMPP (Trifluoromethylphenylpiperazine) overdose?
Serotonin syndrome; Seizures; Severe headache, nausea Call emergency services immediately.
How addictive is it?
Sold as 'legal X' — the piperazine epidemic of the 2000s Dependence can develop with regular use.