I don't have Parkinson's, nor do I know anybody who does, however in Sherry Rogers book Detoxify or Die, she talks about people getting a glutathione injection for Parkinson's and within minutes a person can be transformed. She says it lasts for one or two days before another is needed.
She quotes this as the work of a Dr. David Perlmutter who has a website, Brainrecovery.com. I haven't visited the website but thought some of you may be interested.