Inhaled steroid therapy is a cornerstone of managing asthma and chronic respiratory conditions in cats. Here’s a summary of the key points every pet owner should know.




Immediate veterinary visit required for acute respiratory distress
If your pet’s coughing worsens, they start panting heavily, their mouth turns blue, or they collapse, seek veterinary care immediately. These signs indicate an acute respiratory crisis that can be life-threatening.

| Item | Inhaled Corticosteroid | Systemic Corticosteroid |
|---|---|---|
| Drug Delivery Site | Directly to the airway | Systemic circulation |
| Risk of Side Effects | Low | High |
| Feasibility of Long-term Use | Highly feasible | Limited |
| Main Side Effects | Systemic side effects rare (rarely diabetes·heart failure with long-term use) | Diabetes, heart failure, polydipsia·polyuria |
Inhaled corticosteroids are specialized for controlling airway inflammation, making them suitable for long-term management. However, it may take an average of 7 to 10 days to see effects, and combined use with systemic corticosteroids may be necessary in the early stage of treatment.


A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] BSAVA Manual of Canine and Feline Dermatology, 4th Ed, 2020
[2] Handbook of Veterinary Pharmacology, 2021
[3] The Veterinary Workbook of Small Animal Clinical Cases, 2019