I just found that as well. Remember you start off with very small doses and work up carefully. It's never recommended to start off with a larger dose as it can easily cause herxing - or if you find out you react to it, it could be one heck of a reaction that will take time to calm back down.
I haven't read through his book yet, can you tell me where you read it's a muscle relaxer?
I can tell you that I have used cat's claw for several years now and I was misdiagnosed as having MS at one point, and I've never had any issues with it. Do you have muscle spasms and twitches? Or muscle wasting?
Herb only treatment for Lyme & Bart ended 12/11 - no active symptoms for 2 yrs -Herb only treatment for Babesia ended 12/12www.healingwell.com/community/default.aspx?f=30&m=2977364
Had Lyme, Bart, Babs, RMSF, Ehrlichia, Myco, Anaplasmosis, EBV
New Lyme case 8/2014 - Healed 1/31/15 - unknowingly had Asymptomatic Babs and Asymptomatic Bart, being treated now though (2/2016)