Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Parkinson's Disease ?
    ### Response:
    Doctors may prescribe a variety of medications to treat the non-motor symptoms of Parkinson's disease, such as depression and anxiety. Hallucinations, delusions, and other psychotic symptoms may be caused by some drugs prescribed for Parkinson's. Therefore, reducing or stopping those Parkinson's medications may make these symptoms of psychosis go away.
    