Serotonin is a chemical produced by the body that enables brain cells and other nervous system cells to communicate with one another.
Too little serotonin in the brain is thought to play a role in depression.
Too much, however, can lead to excessive nerve cell activity, causing a potentially deadly collection of symptoms known as serotonin syndrome.
Serotonin Syndrome Symptoms
Serotonin syndrome symptoms often begin within hours of taking a new medication that affects serotonin levels or excessively increasing the dose of one you are already taking. Symptoms may include: Confusion, Agitation or restlessness, Headache, Loss of muscle coordination or twitching muscles