Use code ONREPEAT at checkout for 65% off up to $65 on Auto-Refill Orders.

Use code DOGDAY40 at checkout for $40 off your next order over $100.*

*Coupon terms and conditions: code DOGDAY40 applicable for one-time or Subscribe & Save orders, for a limited time. Coupon codes apply to many, but not all, products. Excluded products include but are not limited to Azodyl, Bravecto, Bravecto Plus, Droncit, Incurin, Mometamax, Numelvi, Optimmune, Posatex, Sentinel, Tri-Heart Plus, VetPen, Vetsulin, compounded and refrigerated medications. Promotional code valid through August 23, 2026.

Use code DOGDAY60 at checkout for $60 off your next order over $200.*

*Coupon terms and conditions: code DOGDAY60 applicable for one-time or Subscribe & Save orders, for a limited time. Coupon codes apply to many, but not all, products. Excluded products include but are not limited to Azodyl, Bravecto, Bravecto Plus, Droncit, Incurin, Mometamax, Numelvi, Optimmune, Posatex, Sentinel, Tri-Heart Plus, VetPen, Vetsulin, compounded and refrigerated medications. Promotional code valid through August 23, 2026.

Now Available on Koala: Royal Canin Vet Fresh Frozen Diets! Use code FRESH50 at checkout for 50% off your first Subscribe & Save order.*

*Coupon terms and conditions: code FRESH50 applicable for first-time Subscribe & Save orders only. Coupon code applies to the following products: Royal Canin Appetite Stimulation Fresh Frozen Dog Food, Royal Canin Gastrointestinal Low Fat Fresh Frozen Dog Food, and Royal Canin Selected Protein Pork Recipe Fresh Frozen Dog Food. Promotional code valid through December 31, 2026.

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Respiratory and asthma medicine for dogs to support breathing and lung health. Shop Koala Health.

Respiratory & Asthma Medicine for Dogs

respiratory care & asthma

AeroDawg Chamber is an aerosol holding chamber (spacer) for dogs with bronchitis, allergies, collapsed trachea, and breathing difficulties.

AeroDawg Chamber Inhaler Spacer

Albuterol is a bronchilator supplied as an inhaler to open the airways for certain respiratory conditions.

Albuterol

Albuterol Inhaler

Cough Tablets are a combination of guaifenesin, an expectorant, and dextromethorphan, a cough suppressant to relieve symptoms of conditions that cause coughing.

Cough Tablets

Fluticasone (Flovent) is an inhaled steroid used to treat inflammatory airway diseases like asthma.

Flovent Inhaler

Fluticasone is an inhaled steroid used to treat inflammatory airway diseases like asthma.

Fluticasone Propionate Inhaler

Prednisone and prednisolone are steroids used to treat a wide variety of dog illnesses including inflammatory conditions, immune-mediated diseases, certain cancers, and Addison's disease (hypoadrenocorticism).

Prednisone

Prednisone and prednisolone (PrednisTabs) are steroids used to treat a wide variety of dog and cat illnesses including inflammatory conditions, immune-mediated diseases, certain cancers, and Addison's disease (hypoadrenocorticism).

PrednisTabs

Sildenafil is prescribed to treat certain heart conditions like pulmonary hypertension.

Sildenafil

Temaril-P is an oral medication that treats both coughing and itchiness due to a wide variety of causes.

Temaril-P

Theophylline is a bronchodilator, which opens the airways, and is used to treat a variety of cardiac and respiratory diseases.

Theophylline

Triamcinolone is a steroid used to treat inflammatory conditions, especially allergy and skin disorders.