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

✨ FOURTH OF JULY SALE: Use code JULY35 at checkout for 35% off up to $35 on your next order.* ✨

*Coupon terms and conditions: JULY35 valid for first-time orders over $20, not limited to Autoship. 35% off up to $35. 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 July 6, 2026.

🎆 FOURTH OF JULY SALE: Use code JULY50 at checkout for 50% off up to $50 on your next Autoship order.* 🎆

*Coupon terms and conditions: code JULY50 applicable for auto-refill orders only, 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 July 6, 2026.

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Digestive and stomach medicine for dogs to support gut health and digestion. Shop vet-approved options at Koala Health.

Digestive & Stomach Medicine for Dogs

digestive & gastrointestinal

Metronidazole is an antibiotic most commonly used for the gastrointestinal tract, but is also used for infections in many other parts of the body.

Metronidazole

Mirtazapine is an oral or transdermal medication used as an appetite stimulant and to control nausea and vomiting.

Mirtazapine

Cobalequin is used to supplement vitamin B12 in animals who lack it due to gastrointestinal disorders.

Nutramax Cobalequin® B12

Probiotics supply "good" bacteria to the gut and promote overall digestive health.

Nutramax Proviable-DC®

Nutramax Proviable® Probiotics Diarrhea Support Kit

Omeprazole reduces stomach acid production.

Omeprazole

Ondansetron is used to treat nausea and vomiting due to a variety of causes.

Ondansetron

Pancreatic enzymes (Pancreas Powder) are used in conditions like exocrine pancreatic insufficiency, in which the body does not supply its own digestive enzymes. This medication may be dispensed under one of several different brand names.

Pancreas Powder

Pancreatic enzymes (PancrePlus Powder) are used in conditions like exocrine pancreatic insufficiency, in which the body does not supply its own digestive enzymes.

PancrePlus Powder

Pancreatic enzymes (PancrePlus Tablets) are used in conditions like exocrine pancreatic insufficiency, in which the body does not supply its own digestive enzymes.

PancrePlus Tablets

Pancreatic enzymes (Pivetal Pancresorb Powder) are used in conditions like exocrine pancreatic insufficiency, in which the body does not supply its own digestive enzymes. This medication may be dispensed under one of several different brand names.

Pivetal Pancresorb Powder

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).