What is serotonin syndrome?

Serotonin syndrome happens when you overdose on a drug that affects the serotonin receptors in your brain. It can also be brought on by an interraction of two drugs that should not have been taken together, such as two drugs affecting the serotonin that end up cumulating effect, or an MAO inhibitor, which stops your system from eliminating the drugs correctly for a while.

Symptoms may include; muscle twitching, hypertension, shivering, sweating, fever, rapid breathing, nausea, diahrea, hallucinations, agitation, delerium, headache, coma... and death.