Beclomethasone Inhaler in Cats
Generic: Beclomethasone
Beclomethasone is a potent inhaled corticosteroid prescribed for the long-term management of chronic airway inflammation in cats, primarily for feline asthma.
This medication is intended for cats.
Overview
Beclomethasone dipropionate is a synthetic glucocorticoid delivered via inhalation to directly target inflammation within the respiratory tract of feline patients. As a foundational therapy for lower airway disease, it is frequently utilized as an alternative or adjunct to other inhaled steroids like the Fluticasone Inhaler, providing targeted local immunosuppression to reduce hyper-responsiveness. By delivering the medication directly to the bronchioles, the systemic absorption is minimized compared to oral prednisone, which is a major advantage for cats requiring chronic daily respiratory support. While other antitussive agents such as Hydrocodone (Cough), Codeine (Cough), Dextromethorphan, or Butorphanol (Cough) might address the symptoms of coughing, beclomethasone addresses the underlying inflammatory pathology. Unlike bronchodilators such as Albuterol, Terbutaline, or Theophylline, which provide rapid relief during acute distress, beclomethasone acts as a maintenance medication to prevent exacerbations. It is distinct from mucolytics like Bromhexine or expectorants like Guaifenesin, as it does not influence mucus viscosity but rather limits the immune response that triggers excess production. In severe cases of chronic bronchitis, veterinary clinicians may also consider systemic agents, though inhaled beclomethasone is often the gold standard for reducing clinical frequency of 'asthma attacks.' It is important to note that this medication is not for acute rescue; respiratory distress requires immediate stabilization and potentially fast-acting bronchodilators to clear the airway before long-term steroid therapy can be effectively continued.
What It Treats
- Feline Asthma: Reduces chronic inflammation in the lower airways to prevent asthma attacks.
- Chronic Bronchitis: Helps manage persistent coughing and airway wall thickening.
- Allergic Airway Disease: Suppresses the immune-mediated inflammatory response triggered by environmental allergens.
How It Works
Beclomethasone works by binding to glucocorticoid receptors in the lining of the lungs. Once bound, it inhibits the activity of inflammatory cells such as eosinophils, macrophages, and lymphocytes that infiltrate the lungs during an allergic or chronic inflammatory response. By dampening this cellular activity, it effectively reduces the production of inflammatory cytokines and mediators like histamine and leukotrienes. This process reduces the swelling of the airway mucosa, limits mucus secretion, and decreases bronchial hyper-responsiveness to triggers. Because the drug is inhaled, it achieves high local concentrations in the lungs while minimizing the risk of systemic side effects like polyuria, polydipsia, or muscle wasting that are common with oral steroids. It essentially 'calms' the airway so that it does not overreact to stimuli that would otherwise cause constriction or blockage.
Dosage
Dosage is highly individualized and must be strictly determined by your veterinarian. The typical starting dose is one to two puffs per cat, once or twice daily, using a specialized feline chamber device. Never alter the dosage frequency or stop treatment abruptly without veterinary consultation, as the inflammatory disease may rebound.
Administration
Beclomethasone is administered using a metered-dose inhaler (MDI) attached to a feline-specific spacer device (e.g., Aerokat). To ensure effective delivery, place the mask gently over the cat's nose and mouth so a proper seal is formed, and then dispense one puff into the chamber. Allow the cat to take approximately 10 breaths through the chamber before removing the mask. Consistency in the timing of administration is critical to maintaining stable control of airway inflammation.
Storage
Store the canister at room temperature (typically between 59°F and 86°F) in a dry, cool place away from direct sunlight. Do not freeze the canister or expose it to extreme heat, as the pressurized contents may become unstable. Ensure the protective cap is placed back on the mouthpiece after each use to prevent debris from entering the valve.
Contraindications
Beclomethasone should not be used in cats with active or untreated respiratory infections, such as bacterial pneumonia or fungal lung infections, as the immunosuppressive nature of the drug may worsen the infection. It is also generally contraindicated in cats with known hypersensitivity to the drug or its components. Caution must be exercised in cats with concurrent systemic diseases like diabetes mellitus, as glucocorticoids can negatively influence blood glucose levels, even when delivered via inhalation. If a cat is currently in an acute state of status asthmaticus or severe respiratory distress, inhaled beclomethasone will not provide the rapid bronchodilation necessary to save the patient's life; it should only be introduced once the patient is stable.
Interactions
Beclomethasone may have interactions with other potent corticosteroids being administered orally or via injection, increasing the risk of systemic effects such as iatrogenic Cushing’s syndrome. Concurrent use with certain antifungal medications, such as ketoconazole, may slow the metabolism of corticosteroids, potentially leading to higher systemic exposure than intended. While rare in cats, clinicians should be cautious when pairing inhaled steroids with other drugs that suppress the immune system. Always provide a full list of current medications to your veterinarian before starting beclomethasone to identify potential negative outcomes.
Side Effects
- Oropharyngeal candidiasis (thrush)
- Increased susceptibility to respiratory infections
- Hoarseness or changes in vocalization
- Minimal systemic effects (due to targeted delivery)
- Reduced adrenal gland response (rarely with chronic high doses)
Sources & References
Frequently Asked Questions
This information is educational only and not a substitute for professional veterinary advice. Always consult a licensed veterinarian before starting or changing any medication.


