prami comes with a lot of sides - headaches, fatigue etc
caber is easier on sides and longer acting, the better choice but it reduces serum igf-1 and has sides in it's own right (not as bad as prami though)
personally, my first port of call would be vit B6 at 600mg daily.
very underused when it comes to prolactin control, it does an effective job and has none of the downsides of the drugs above.
but if your prolactin is extremely high, acting on it immediately with caber to reduce and then maintaining with B6 would probably be best.