This is a curiosity question, so that I may be able to have a more specific conversation with my vet. (Actually, my regular vet is on maternity leave; I'll need to have the convo. with her colleague/employee.)
If you've used Lactulose with success for a bun with digestive slowdown (or even stasis), what dosage did you use, how frequently did you give it, what is your bun's weight, and what total dosage of sub-Qs did you give in a 24-hour period to keep your bun hydrated?
To clarify: I will not give Lactulose to my bun without discussing it with the vet first. I just want to know what the rule-of-thumb is for giving it, so that I can work to convince her to let me try it. (My vet's clinic doesn't use it for rabbits, though I've been working on them to try it.)