PD progress

I have read a lot about PD but am still unclear.
Is there a drug that slows the progress of PD or isn't there?
In theory, there is none. This means, there doesn't exist anything that was proven to slow down the disease progression. There is 1 thing, I found though ... a study about gou teng. Last year it was shown that over a period of 24 weeks, people taking gou teng slept better and dealt better with their symptoms than placebo controlled people.
Hi SF

Whilst there is nothing known to slow the progression, huge strides are being taken towards it.

http://www.cureparkinsons.org.uk/news/show/worldwide/47

The above will take you to information about Peptide, which is being tested as we speak!

Caroline
Thank you..