<prompt> A 30 year old man who was recently started on haloperidol 30mgday developed hyperpyrexia, muscle rigidity, akinesia, mutism, sweating, tachycardia and increased blood pressure. The investigations showed increased WBC count, increased creatinine phosphokinase. There is no history of any other drug intake or any signs of infection. The most likely diagnosis -Drug overdoseNeuroleptic malignant syndromeDrug induce ParkinsonismTardive dyskinesia  <response>: Features of neuroleptic malignant syndrome Marked muscular rigidity High fever Autonomic instability HR BP, Sweating Disturbed consciousness Catatonia stuporLeucocytosis Increased CPK Myoglobinemia Myoglobinuria 