RUI-products Caber is g2g....as is most Liquid Cabergolines that are available.
I've read a few posts stating that cabergoline/Dostinex is very moisture sensitive. So much so in fact, that liquid forms of cabergoline available from some research companies would be rendered inert and useless. Of course many such claims I've read have been placed by places that sells cabergoline tablets. I find this to be kind of suspicious.
After doing some research, I can't find anything to confirm that liquid cabergoline is ineffective. I have found the opposite, though. In fact, I've found that they make a liquid form of cabergoline (Galastop) in Europe that is used to terminate unwanted pregnancies in dogs without having to resort to surgery. It is supposed to be very effective with practically no side effects.
Example:
Cabergoline - Dopamine agonists available for veterinary use in Europe have also been used successfully, particularly cabergoline. Cabergoline is also an ergot alkaloid but, compared to bromocriptine, it is a more potent dopamine agonist, is effective at lower doses and has fewer and milder side effects. Cabergoline is effective in terminating pregnancy in dogs when administered at mid-gestation or later [25]. In pregnant bitches treated after Day 30, pregnancy was terminated in most but not all animals when cabergoline was given at a dose of 1.7 ug/kg, SC, every 2 days for 6 days [13,26]. When bitches were treated after Day 40, doses of 5 ug/kg, PO, for 5 days, or doses of 1.7 ug/kg, SC, every 2 days for 6 days, were effective in all bitches treated [13,26]. When cabergoline is started earlier in pregnancy, at Day 25, treatments that were effective later in pregnancy failed in most bitches and the pregnancy continued until terminated by re-treatment at Day 40. Cabergoline treatment did not produce any side affects at these doses. Cabergoline can be administered orally using a liquid formulation marketed in Europe as Galastop for treatment of pseudopregnancy. The side effects of cabergoline are milder (compared to those of bromocriptine) presumably due to the fact that it appears to be a more specific D-2 dopamine receptor agonist and is less able to cross the blood-brain barrier and have CNS effects. Compared to bromocriptine, cabergoline produces fewer and less pronounced side effects in humans as well.
I know I'm not a pregnant dog, but the stuff has worked for me.