The management of Parkinson’s focuses primarily on dopamine. This complex chemical makes it possible for nerves to transmit messages all over the body. For an overview of the medications used for Parkinson’s, start with the jargon buster entry about dopamine.
There are also a number of surgical procedures, some of which are probably a bit too recent to be considered routine. Operations like deep brain stimulation (DBS) are no longer experimental, but the Canadian medical team that pioneered the procedure remains available to advise colleagues undertaking the operation elsewhere in the world.
See below for posts about existing treatments and medication for Parkinson’s.