Madelyn,

I have been taking Zandopa from India for a few months. Am very slowly switching from sinemet. It works on its own and 'kicks' in in about 1/2 hr. I tried mucuna and it semed to need some sinemet with it. I get it from India from following:

http://mall.coimbatore.com/bnh/zandu/zandopa.htm

Can send you the brochure by PM if you are interested.

Hope this helps!
Sunflower