A patient on antipsychotic for past 4 weeks is brought to the emergency with complaint of acute onset of fever, excessive sweating confusion, rigidity of limbs and decreased communication. Examination reveals Temperature of 104degF; P/R - 120/min BP-150/100 with disorientation. What is the most probable diagnosis:
D i.e. Neuroleptic malignant syndrome
Lithium toxicity
Aggrevation of psychosis
Dystonia
Neurolept malignant syndrome