Asthma in cats
Feline asthma is inflammation and narrowing of the small airways, often triggered by allergens.
Last updated: October 2026 · 2 sources · see sources
Signs to watch for
- Coughing (often mistaken for hairballs)
- Wheezing
- Open-mouth breathing
- Fast breathing
Trouble breathing, collapse, repeated vomiting, not peeing, or a seizure that lasts more than a few minutes needs a vet right away. See when to see a vet.
How vets diagnose it
Chest X-rays and sometimes airway washes. [2]
How it's treated
Inhaled or oral steroids, and bronchodilators for flare-ups. Reducing dust and smoke helps. [2]
Medicines your vet may mention: Prednisone & Prednisolone. We don't list doses; your vet will decide what fits your pet.
What it costs to diagnose and manage
| Item | Typical US price | Src |
|---|---|---|
| Diagnosis (exam and tests) | $200–$500 | [1] |
| Ongoing treatment, per month | $30–$100 | [1] |
| Ongoing treatment over a year (monthly range × 12) | $360–$1,200 | [1] |
These are typical US ranges from the sources listed. Your pet's costs depend on how severe things are, the tests your vet recommends, your pet's size and where you live. Ask your vet for a written estimate.
Outlook
Most cats can be managed well with ongoing medicine. [2]
Common questions
What is asthma in cats?
Feline asthma is inflammation and narrowing of the small airways, often triggered by allergens.
What are the signs of asthma?
Common signs include: coughing (often mistaken for hairballs), wheezing, open-mouth breathing, fast breathing.
How do vets diagnose asthma?
Chest X-rays and sometimes airway washes.
How is asthma treated?
Inhaled or oral steroids, and bronchodilators for flare-ups. Reducing dust and smoke helps.
How much does asthma cost to treat?
Diagnosis (exam and tests): $200–$500; Ongoing treatment, per month: $30–$100; Ongoing treatment over a year (monthly range × 12): $360–$1,200. Costs vary with severity, tests, your pet's size and where you live.
Related
This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.