I could be wrong, but I think some of the Natural Balance contain a lot of potato.
https://en.wikipedia.org/wiki/Natural_Balance_Pet_Foods
I’m sure it is a good food, however I prefer Fromms.
I believe they have puppy formulas https://www.gofromm.com/dog?specs=f_Life+Stage:Puppy!!-10!!
Puppy? How old is your dog? Small breed? Large breed? These are things to consider.
Also, I would put a call in to your vet to give you a call back when he has a minute.
Depending on his assessment, he may recommend a prescription food while your dog is being treated for illness.
I would not stop any prescribed medication without discussing with a veterinarian first. Unless symptoms/side effects are extreme, then of course call your vet or an emergency vet immediately.
PS: I like this one https://www.gofromm.com/classic-puppy-dog-food
