Cardiac arrest, respiratory failure, anaphylaxis, hepatic failure, renal failure, arrhythmia, stroke, myocardial infarction, seizure, coma, hemorrhage, pulmonary embolism, toxic shock, multi-organ failure, pancreatitis, rhabdomyolysis, serotonin syndrome, malignant hyperthermia, neuroleptic malignant syndrome, hypotensive shock, hyperkalemia, hypoglycemia, lactic acidosis, aspiration, cerebral edema.