Serotonin Syndrome 

Serotonin syndrome is a potentially deadly condition that can occur after using some stimulant drugs- particularly MDMA. 


Some signs and symptoms include (but are not exclusive or limited to) - 

  • Agitation or restlessness

  • Confusion

  • Rapid heart rate and high blood pressure

  • Dilated pupils

  • Loss of muscle coordination or twitching muscles

  • Muscle rigidity (stiffness)

  • Heavy sweating- a very important sign, even on hot days 

  • Diarrhea

  • Headache

  • Shivering

  • Goosebumps


Severe serotonin syndrome can be life-threatening. Severe signs and symptoms include:

  • High fever

  • Seizures

  • Irregular heartbeat

  • Unconsciousness

  • You should immediately seek medical attention for anyone with the above symptoms

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Image: Dialated Pupils