Asthma in cats: treatments compared
Checked against veterinary references: October 2026
Short answer
Feline asthma is a long-term airway inflammation that causes coughing, wheezing and breathing trouble. It is controlled with a steroid, often an inhaled human fluticasone inhaler given through a cat spacer and mask, or oral prednisolone, plus an albuterol inhaler for attacks. It cannot be cured, but most cats do well with treatment. Open-mouth breathing in a cat is an emergency.
Asthma treatments for cats at a glance
- Inhaled fluticasoneHuman steroid inhaler with a cat spacerRole: Daily controlHow it is given: Puffs through a spacer and mask, usually twice a dayWhat to watch for: Few whole-body effects; takes a week or two to work fullyWhere to get it: Regular pharmacy; spacer from your vet or online
- Oral steroidRole: Initial control and flaresHow it is given: Tablets or liquid, then taperedWhat to watch for: Thirst, appetite; long-term use can trigger diabetesWhere to get it: Regular pharmacy
- Albuterol inhalerHuman rescue inhaler with a cat spacerRole: Rescue during an attackHow it is given: Puffs through a spacer and mask when neededWhat to watch for: Fast heart rate; frequent need means control is poorWhere to get it: Regular pharmacy
- TerbutalineBronchodilator prescribed by your vetRole: Emergency or added controlHow it is given: Injection at the clinic, sometimes at home, or tabletsWhat to watch for: Fast heart rate, restlessnessWhere to get it: Vet or regular pharmacy
- Trigger controlAt homeRole: Fewer attacksHow it is given: Dust-free litter, no smoking or sprays near your catWhat to watch for: Changes take time to showWhere to get it: Home
| Treatment | Role | How it is given | What to watch for | Where to get it |
|---|---|---|---|---|
| Inhaled fluticasoneHuman steroid inhaler with a cat spacer | Daily control | Puffs through a spacer and mask, usually twice a day | Few whole-body effects; takes a week or two to work fully | Regular pharmacy; spacer from your vet or online |
| PrednisoloneOral steroid | Initial control and flares | Tablets or liquid, then tapered | Thirst, appetite; long-term use can trigger diabetes | Regular pharmacy |
| Albuterol inhalerHuman rescue inhaler with a cat spacer | Rescue during an attack | Puffs through a spacer and mask when needed | Fast heart rate; frequent need means control is poor | Regular pharmacy |
| TerbutalineBronchodilator prescribed by your vet | Emergency or added control | Injection at the clinic, sometimes at home, or tablets | Fast heart rate, restlessness | Vet or regular pharmacy |
| Trigger controlAt home | Fewer attacks | Dust-free litter, no smoking or sprays near your cat | Changes take time to show | Home |
Recognizing asthma
An asthmatic cough looks like a cat crouched low with its neck stretched out, hacking, and it is often mistaken for a hairball that never comes up. Other signs are wheezing, faster breathing at rest, and tiring easily. Filming an episode on your phone helps your vet tell a cough from retching.
Emergency signs
- Breathing with the mouth open, or panting, which cats rarely do.
- Blue or gray gums or tongue.
- Struggling to breathe, with the belly heaving.
- Give the rescue inhaler if your vet has prescribed one, and go to an emergency vet straight away.
Diagnosis
Chest X-rays, and sometimes a sample from the airways, support the diagnosis. Your vet will also rule out conditions that look similar, including heartworm, lungworms and heart disease, because they are treated differently.
Using a spacer with your cat
Human inhalers work for cats when given through a spacer chamber with a small face mask. Introduce the mask gradually with treats over several days. For each puff, press the inhaler into the spacer, hold the mask gently over your cat’s nose and mouth, and let your cat take several breaths, as your vet shows you. Most cats accept it with patience.
Steroids and diabetes
Oral steroids control asthma quickly, but long-term use can trigger diabetes in some cats, which is one reason vets often move to an inhaled steroid for daily control. Increased thirst or urination on steroids is worth reporting. See diabetes in dogs and cats.
Triggers to reduce
Switch to a low-dust, unscented litter, avoid smoking, aerosol sprays, scented candles and plug-in air fresheners near your cat, and consider an air purifier. Keeping your cat lean also eases breathing.
Costs
The inhalers are human prescriptions, filled at a regular pharmacy with your vet’s prescription, and their cash prices vary widely between pharmacies, so compare. Generic fluticasone and albuterol inhalers can lower the cost. See which pet medicines a regular pharmacy can fill.
Frequently asked questions
Can cats use human asthma inhalers?
Yes, when your vet prescribes them and with a spacer and face mask designed for cats. A regular pharmacy can fill the inhaler with your vet’s prescription.
Can asthma in cats be cured?
No, but it can usually be controlled well with daily medicine and fewer triggers, and many cats live normal lives.
What does an asthma attack look like in a cat?
A cat crouched low with its neck extended, coughing or wheezing, sometimes breathing fast or with its mouth open. Open-mouth breathing is an emergency.
Will my cat need medicine for life?
Most cats need ongoing treatment, but your vet will aim for the lowest dose that keeps your cat comfortable, and some cats need medicine only in certain seasons.