I would really prefer Caber over Prami, it gives most people pretty nasty sides. Anyway, if I remember right dosing is same with both, but if you use Prami you should work your way up from 0,25 or even lower to avoid sides. With Caber you can start right off with 0,5 mgs at three or two days.
You should be able to find detailed dosing protocol for both by using search feature.