Remy is adorable! Hopefully the meds will help him. He looks a bit chunky

.... you might want to try to get some weight off of him as that will help his back.
Keep a close eye on him for any signs of deterioration....once they reach a certain point surgery does not help.
Many times the meds do help....keep him as quiet as possible and do not let him jump up and off of furniture. Did the vet suggest crate rest? I think that would be best for him.
I will keep him in my thoughts and prayers.