Respiratory (Breathing) Problems:
If your pet is having any difficulty breathing, seek immediate emergency medical care.
Difficulty breathing can include: labored breathing, increased respiratory effort, increased respiratory rate, wheezing, excessive coughing, honking or other abnormal noises, rapid panting, panting at rest or while sleeping and more. Even minor changes in breathing can escalate very quickly, and seeking medical attention right away is the safest option.
It is not normal for a cat to pant or breathe with its mouth open. If your cat is breathing with an open mouth, or appears to be panting, it is a sign of distress and you should seek immediate emergency medical attention.
Please remember the list above it not exhaustive. If you believe your pet is having any difficulty breathing, seek immediate veterinary medical attention.