When Carina was diagnosed with arthritis a couple of weeks ago, I questioned the use of Rimadyl because of the possible liver problems so the vet prescribed Etogesic instead. It's for short term antinflamatory relief and seems to be working well. For long term use I'm giving her Sinovi-MSM but won't see any results for a while because it takes some time to build up in the system.
Hope Bandit starts feeling better soon, give him a big hug from me.