Use of Parkinson's drugs, particularly dopamine agonists such as Mirapex (pramipexole), has on occasion led to uncontrollable gambling, shopping, or preoccupations with sex, or to obsessive repetition of certain activities such as collecting or counting particular objects. Reducing or changing medication may resolve the problem.

For more information online:

Download Parkinson Disease: Mind, Mood, and Memory, a comprehensive brochure from the National Parkinson Foundation's free publications page.

Search for information on depression and anxiety at the National Institute of Mental Health's publications page.

Check out the Parkinson's Disease Foundation's fact sheet, "Coping With Dementia: Advice for Caregivers".