Serotonin synrome is a rare, but potentially life-threatening adverse drug reaction that results from intentional self-poisoning, therapeutic drug use, inadvertent interactions between drugs, or the recreational use of certain drugs. It is an iatrogenic (i.e. caused by medical treatment) toxidrome (from toxic + syndrome). It is most commonly referred to as serotonin syndrome, but the terms serotonin toxicity or serotonin toxidrome are more accurate as they reflect the fact that it is a form of poisoning. Rarely it may also be called serotonin storm.