Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Neuroleptic Malignant Syndrome ?
    ### Response:
    Neuroleptic malignant syndrome is a life-threatening, neurological disorder most often caused by an adverse reaction to neuroleptic or antipsychotic drugs. Symptoms include high fever, sweating, unstable blood pressure, stupor, muscular rigidity, and autonomic dysfunction.
    