Both. I had a dog with Lyme disease related kidney damage, she needed subq fluids almost every day during the last 2 years of her life.
NSAIDS are known to have nausea as a side effect. I am thinking that your vet is concerned about the potential side effects that Galliprant may cause. It may outweigh the benefit? Only the vet that examined your dog can explain…..you can always get another opinion.
I would be leery of the homeopathic vets offering miracle cures. There are a lot of charlatans out there.
