Serotonin syndrome is a condition that occurs ... One of the most telling signs is unexplained muscle rigidity, loss of ...

It also regulates smooth muscle tone, specifically of the blood vessels and gastrointestinal tract in the periphery (Boyer & Shannon, 2005). Serotonin syndrome is a state of excess serotonin ...

muscle rigidity), and /or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea). Discontinue treatment and any concomitant serotonergic agents immediately if serotonin syndrome occurs and ...