[cypher]

Poor little Max, I'm not surprised you're worried.
It may take a while for the meds to kick & have a noticeable effect, how long is the course & have you got a follow up appointment with the vet?
I don't think there's much you can do other than keep giving the meds until the course is finished, if it's still no better then he'll definitely have to go back to the vet.
Is he managing to eat & drink OK, if he can't eat his normal food he may be able to eat baby food or hamster food softened in water.