<prompt> A 45-year-old male, Sanjeev was brought to the emergency with severe agitation and aggressive behavior. He was staed on haloperidol and the patient became responsive and cooperative. After 8 days of treatment, he developed high grade fever, diarrhea, confusion and muscle rigidity. Which of the following should be used for the treatment of this condition?DiazepamBenzhexolDantroleneHigh dose of haloperidol  <response>: Ref: Katzung 11e p499 Diagnosis in this patient is neuroleptic malignant syndrome NMS. It is an adverse effect caused by typical antipsychotic drugs like haloperidol. It presents clinically with four primary features: 1 hypehermia, 2 extreme generalized rigidity, 3 autonomic instability, and 4 altered mental status. Dantrolene is drug of choice for this condition. 