I am using .5mg prami EOD right now, dosage is on the lower side from what I have read but I have been dosing it since I started the deca about 2 weeks ago now because I am particularly prone to prolactin gyno and I have noticed no bad side effects yet. I know caber has its fair amount of possible sides. As for effectiveness at prolactin regulation I think they are about the same. I also know caber can be quite a bit more pricey than prami, but I guess that depends on your source.
hope that helped.