Update 10/20/2019
At this point in time even a very small quantity of celery seed extract causes me dystonia. By small quantity I mean one third of one capsule. The benefit I was receiving has dissipated. For those who are not using this I recommend looking elsewhere. For those who are using this and receiving benefit I recommend using the smallest possible dosage.
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Original post:
This study was brought to our attention by Iqbaliqbal:
DL 3 n butylphthalide therapy for Parkinson's disease: A randomized controlled trial
spandidos-publications.com/...
The unpronounceable chemical name in the title goes by NBP or 3nB for short. Test patients received 200 mg of NBP three times daily. Over a period of 3 to 6 months they experienced a significant improvement, whereas patients receiving the placebo declined, as shown by the charts of the study results reproduced above.
Here are some selected results after six months of treatment:
................................................Score..... Change from baseline
Bradykinesia........................... 21.72 ....................-7.14
39 Item Questionaire ..........27.23 ..................-13.26
The active ingredient is a component of celery seed extract. This can be purchased from Amazon or VitaCost. Credit to Despe for finding a product from Natural Factors that specifies the amount of NBP it contains:
amazon.com/dp/B00EDJN330/re...
vitacost.com/productResults...
To dose according to the study I took three 75mg capsules of a Swanson's product three times a day. Swanson's used to specify the amount of NBP it contained but they changed their labeling:
amazon.com/gp/product/B003S...
Kudos to the publisher who has made the full study available for no charge.
UPDATE 7/14/2019 and 8/19/2019:
I started taking this the third week of April, 2019. About a month and a half later, in early July, I noticed increasing dystonia (muscle tightness). In a comment below Kia stated he experienced dystonia as result of taking this. Mindful of that I took about a one week break and the dystonia resolved. I then resumed at a lower dose of one 75mg capsule 3x daily. So if you decide to try this be on the lookout for dystonia.
As of August I have reduced my C/L 25/100 from 4 doses daily to 2-3 doses daily. Also I am able to type with my affected hand instead of using speech-to-text, and my exercise tolerance has improved.
No decrease in blood pressure or increased urination, contrary to its reputation as a diuretic.
Others who are trying this are encouraged to report back in, especially after 4 months or more!
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Update September 6, 2019
Within the last week or so I developed dystonia again. Stopping the celery seed extract did not help, nor has resuming two capsules per day helped. At this point I have pretty much recovered from motor impairment which is marvelous, but I am having strong dystonia, which is not marvelous.
Based on this result, for others who are also taking celery seed extract, you may want to consider tapering to a low dosage or even off of it altogether for now.