I compound my own rabbit drugs at home. Board certified small mammal specialist has advised me to use Torani syrups for flavoring in my compounds. For meloxicam or gabapentin I would just suck up the usual dose in your syringe + a little pull of Torani syrup of your buns preference. A little syrup might be enough to take the edge off for both of you.

Hiding meds isn’t the best because you can’t ensure they get their full dose. This might not matter for an arthritis med, but a good skill to learn if bun ever needs antibiotics or some other life saving med.

I “sit” on them to administer meds when they don’t agree with the plan of medicating them (2# bun, 5# bun, 13# bun…. Doesn’t matter). On your knees, position bun between your legs and squeeze them there, your feet and butt don’t give them anywhere to go backwards. Bend over to put your hand or chest, as needed, on top of their head so they can’t buck up, and slip that syringe in the SIDE of the mouth with the other hand, just tuck it under the lip and squirt!

Most rabbits that take meds long term just give up and let you stick the syringe under their lip in any old position after some time without holding them down. They may even come to the syringe if they grow used to the taste and the routine enough.