Hi Ollie, I once had a problem with what I would describe as a "Parkinson frozen shoulder" It turned out that the cause was an abrupt switch between generic and name brand requip. Once the medication problem was solved, the shoulder problem was resolved quickly.

Others have told me of situations where a patient's shoulder pain was the first symptom of PD and the patients had shoulder surgery that yielded no benefit or improvement.

I know that neurologists here use botox on upper limbs. Have you considered that as a possible treatment?