Ketamine and MDMA are often stacked on a dancefloor: MDMA raises heart rate and body temperature while ketamine adds dissociation and blunt pain feedback.
Clinical consequences:
- Overheating risk rises when movement continues without clear heat signals
- Injury risk rises because falls and collisions feel less painful
- Cardiovascular load stacks from both substances
- Orientation can drop fast in crowded, hot rooms
Practical risk reduction (if combining is unavoidable): cool breaks, water with salt, sit when vision or balance slips, and keep a sober contact. Points of contact in Germany: local drug checking / party support projects and Deutsche Aidshilfe.