Asthma in Cats: Symptoms, Treatment and Costs in the UK
Feline asthma is a chronic inflammatory airway disease affecting an estimated one to five per cent of cats in the UK. It causes episodes of coughing, wheezing and breathing difficulty that can range from mild and infrequent to severe and life-threatening. With the right diagnosis and management, most cats with asthma lead comfortable, normal lives.
Key takeaways
- Feline asthma should be suspected in any cat with a persistent cough or episodic breathing difficulty — it is often mistaken for hairball attempts.
- Inhaled corticosteroids using a feline spacer device (such as AeroKat) are the preferred long-term treatment.
- An acute asthma attack with open-mouth breathing or blue gums is a medical emergency requiring immediate veterinary care.
What Is Feline Asthma?
Feline asthma (also called feline bronchial disease or allergic bronchitis) involves chronic inflammation of the lower airways. Exposure to airborne allergens or irritants triggers the immune system to mount an exaggerated response, causing the bronchial walls to swell, muscles around the airways to spasm and mucus to accumulate — all of which narrow the airways and make breathing difficult.
Common triggers include cigarette smoke, aerosol sprays (cleaning products, hairspray, perfume), scented candles, pollen, dusty cat litter, mould spores and certain foods. Siamese cats are noted to be at higher risk than other breeds. The condition can present at any age but is most commonly diagnosed in young to middle-aged adults. Feline asthma cannot be cured but can be very effectively managed.
Signs and Symptoms
The classic presentation is a cat crouching low with neck extended, wheezing or coughing — a posture owners frequently mistake for a cat trying to bring up a hairball. Persistent dry coughing or hacking that does not produce a hairball should prompt veterinary investigation. Other signs include rapid breathing, laboured breathing visible as exaggerated abdominal effort, and open-mouth breathing.
Acute asthma attacks can be severe: the cat becomes very distressed, breathes rapidly through an open mouth and may have bluish-tinged gums (cyanosis) — a sign of dangerous oxygen deprivation. An acute attack is a medical emergency and requires immediate veterinary attention, including oxygen therapy and bronchodilator medication. Between attacks, many cats appear completely normal.
Diagnosis
Diagnosing asthma requires ruling out other causes of respiratory signs, such as lungworm (Aelurostrongylus abstrusus), pleural effusion from heart disease, or pneumonia. Your vet will begin with a consultation (£40–£65) and chest X-rays (£100–£250), which in asthmatic cats typically show a characteristic bronchial pattern — thickened bronchial walls visible as 'tramlines' or 'doughnuts'.
Bronchoscopy and bronchoalveolar lavage (BAL) — sampling cells directly from the airways under anaesthetic — provide the most definitive diagnosis and cost approximately £400–£800. Blood tests and a Baermann faecal test for lungworm larvae are often performed. A faecal ELISA test for lungworm is also available. The full diagnostic workup may cost £300–£800 in total.
Treatment and Management Costs
The cornerstone of asthma management is corticosteroids to reduce airway inflammation, combined with bronchodilators such as salbutamol for acute relief. Inhaled medications — using a small spacer device like the AeroKat that fits a cat-sized facemask — are the gold standard as they act directly on the airways with fewer systemic side effects than oral steroids.
Inhaled fluticasone (the cat equivalent of a standard human asthma preventer inhaler) typically costs £30–£60 per month; a salbutamol reliever inhaler (Ventolin) is inexpensive. The AeroKat spacer costs approximately £25–£40. Oral prednisolone is used for severe cases or where inhaler training is not possible. Environmental trigger management is equally important — switching to low-dust, unscented litter, stopping smoking indoors and removing aerosol sprays from the cat's environment can significantly reduce the frequency and severity of attacks.
Find a Vet Near You
Managing feline asthma means finding a vet you trust for ongoing check-ups and prescription management. Use CompareMyVet at app.comparemyvet.uk to find and compare local vet practices and see their published prices before booking.
Common questions
Common triggers include cigarette smoke, aerosol sprays, scented cleaning products, dusty litter, pollen, mould and air fresheners. Identifying and eliminating triggers from the home environment is as important as medical treatment and can dramatically reduce attack frequency.
Asthma cannot be cured, but it can be effectively managed so that most cats experience few or no significant attacks. With consistent treatment and good trigger management, many cats with asthma lead entirely normal, comfortable lives.
Ongoing treatment with inhaled fluticasone and a salbutamol reliever typically costs £30–£70 per month. Diagnostic workup initially costs £300–£800. Compared to other chronic feline conditions, asthma is relatively cost-effective to manage once the correct treatment protocol is established.
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