When I switched from rebif to copaxone I had read 20mcg for the cop. I was kinda excited about going from 44mcg to 20mcg and figured, ah it's everyday but it's so much less. I was really bummed when the cop came and it was 20mcg of med mixed with 80mcg of manitol. IT WAS HUGE! I almost glad it didn't work for me because those huge shots everyday on my skinny butt were not fun. Now on 22mcg bif again and they're very small and easy to take. Damn depression though. ughhh.

Since mcg is weight and ml is volume I don't really know how they compare but I can't imagine injecting more liquid than a copaxone shot.