sub will do nothing for clonipine treatment with that you need to be tapered off it slowly over several months I have never hered of sub being used for anything but opiate treatment are you sure your bro is being on the up and up with you he might be to embarrassed to admit he has an opiate problem you could google sub for this treatment but I doubt you will find anything coming off clonapine is a ruff detox if they try to go fast its not very plesent doing it slow I wish you all the best with this good luck and God bless.......Gnarly
I also thought it can NOT be used for benzo withdrawal. I'd get another opinion before going that route.