Weight Loss & Metabolic Meds
Liothyronine (T3)
Street names: T3, Cytomel, Thyroxyl
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Active thyroid hormone — raises basal metabolic rate sharply
- Weight drops fast; fat AND muscle burn
- Legitimate use: hypothyroidism, myxedema
⚠Key risks
- At abuse doses: cardiac arrhythmia, heart failure, bone loss
- Muscle catabolism — the 'cut' comes with your muscle
- Thyroid shutdown on cessation — rebound weight gain
- Stacking with clenbuterol ('cutting stack') multiplies cardiac risk
✚Overdose signs
- Racing irregular heartbeat
- Tremor, sweating, fever
- Chest pain, breathlessness — emergency
📋Quick facts
Also known asT3, Cytomel, Thyroxyl
CategoryWeight Loss & Metabolic Meds
Schedule / classRx-only — not controlled
Appearance5/25/50 mcg tablets; grey-market 'research' versions
Street price~$0.50–$2 per tablet grey-market
Legal statusRx-only; heavily diverted for 'cutting'
Last updated2026-09-16
Sources: FDA, EMA
Category comparison — Weight Loss & Metabolic Meds
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| Liothyronine (T3) | Rx-only — not controlled | At abuse doses: cardiac arrhythmia, heart failure, bone loss; Muscle catabolism — the 'cut' comes with your muscle | ~$0.50–$2 per tablet grey-market |
| Levothyroxine (T4) | Rx-only — not controlled | Overtreatment = hyperthyroid state: palpitations, anxiety, bone loss; Taking it without hypothyroidism provides little benefit at real risk | ~$0.10–$0.50 per tablet |
| Clenbuterol HCl | Not approved for human use | Racing heart, arrhythmia, tremors; Overdose: dangerous potassium shifts, cardiac events | ~$0.50–$2 per 40 mcg tablet |
| Orlistat (Xenical/Alli) | OTC | Oily stools, urgency, flatulence — the famous GI sides if you eat fatty; Fat-soluble vitamin absorption drops (take a multivitamin) | ~$0.50–$2 per capsule |
Street prices are regional estimates. Potency and cuts vary constantly.
RxBrand names on the grey market
These brands are sold as this compound. Same molecule, different label and supply chain — quality varies enormously between them.
T3Liothyronine (T3)Thyroxyl (T3)
?Frequently asked questions
What does Liothyronine (T3) look like?
5/25/50 mcg tablets; grey-market 'research' versions
What are the signs of a Liothyronine (T3) overdose?
Racing irregular heartbeat; Tremor, sweating, fever; Chest pain, breathlessness — emergency Call emergency services immediately.
How addictive is it?
At abuse doses: cardiac arrhythmia, heart failure, bone loss Dependence can develop with regular use.
🔗Sources & further reading
Facts on this page are compiled from these primary sources. External links open in a new tab.