DNP

Detailed overview

**WARNING: DNP use is EXTREMELY DANGEROUS, with documented fatal hyperthermia cases (Grundlingh 2011 systematic review). This entry is included for educational purposes only and DOES NOT provide usage guidance. Please do not use it, and inform others of the dangers.** 2,4-dinitrophenol (DNP) is an industrial chemical (dyes, explosives) briefly marketed as an anti-obesity drug in the 1930s in the US. It uncouples mitochondrial oxidative phosphorylation: protons from the electron transport chain bypass ATP synthase, and the released energy dissipates as heat. **ATP/heat dissipation quantitative detail**: a healthy mitochondrion produces 38 ATP per glucose molecule; on DNP this drops to ~10-15 ATP, with the missing energy uncontrollably dissipating as heat. Result: extreme BMR rise (up to +50%), but uncontrollable hyperthermia which can cause 41-43°C body temperature and death. **Bodybuilder use pattern (Petróczi 2015 PMID 26092626 inline)**: based on a pre-contest "magic bullet" myth; online bodybuilding forums still circulate 200-400 mg/day protocols that approach or exceed the lethal 4.3 mg/kg threshold (~300 mg in an adult). Most deaths involved healthy men aged 21-32. **Lethal hyperthermia onset**: 41-43°C body temperature within 6-12 h after acute dosing – sweating → tachycardia → tachypnea → confusion → seizure → organ failure. There is NO antidote (ice bath + ICU support, often too late).