I've 3 babies. One is always trying to catch his breath, it's not asthma...Vet took an XRAY and says he's all inflammed inside...she thought it was the litter..at the time it was tidy cat...she suggested the newspaper type...welll they have certainly let me know they don't like it...and left surprises all over the room. but, Norton isn't gasping as much...maybe once a week, before it was so often we had to use prednisone on him. I'd like to change so they all start using the box again. Is this new brand you're discussing in Petco or Petsmart. I I will try it but I only hope Norton can handle it.