news.wsu.edu/2016/06/16/nas...
I might not have even paid attention to this however on our local news they had absolutely glowing reports of Parkinsons Volunteers in this study physically doing much better. And even after discontinuation of the study for couple months the Improvement stayed with the volunteers.
Both the first and the second study are headed by the same doctor. The study tells you exactly what to do you can compound your own glutathione nasal spray. Even if you use a smaller amount it's okay. Otherwise as we well know it's going to be 10 years in the future if ever.
I bought some saline nasal spray and open up glutathione capsules and dissolved the powder in the saline solution.