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

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.

Use code EASYFILL50 at checkout for 50% off up to $50 on your first Subscribe & Save order.*

*Coupon terms and conditions: code EASYFILL50 applicable for first-time Subscribe & Save 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.

Use code CHOICE30 at checkout for 30% off up to $30 on your next order.*

*Coupon terms and conditions: code CHOICE30 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.

Allergy Relief

Antibiotics

Anxiety, Behavior & Stress

Arthritis, Pain & Joint Health

Dental

Dewormers & Parasiticides

Diabetes & Insulin

Digestive & Gastrointestinal

Ear Care

Eye Care

Flea & Tick

Food

Heart & Blood Pressure

Heartworm

Immune Support

Respiratory Care & Asthma

Seizure & Epilepsy

Skin & Coat

Thyroid & Hormone

Urinary Tract & Kidneys

Vitamins & Supplements

All Cat Food

Dry Food

Treats

Veterinary Diets

Wet Food

All Dog Food

Dog heartworm medicine to prevent heartworm disease. Vet-approved preventatives from Koala Health.

Dog Heartworm Medicine

heartworm

A monthly topical medication that prevents heartworm disease, treats and controls flea infestations, treats certain skin mites, and treats and controls certain intestinal parasites including whipworms. 

Advantage Multi

Prevents heartworm disease as well as treats and controls certain intestinal parasites.

Heartgard Plus for Dogs

A monthly oral medication that prevents heartworm disease as well as treats and controls certain intestinal parasites.

Interceptor for Dogs

A monthly oral medication that prevents heartworm disease plus treats and controls certain intestinal parasites including tapeworms and whipworms.

Interceptor Plus for Dogs

A monthly oral medication that prevents heartworm disease as well as treats and controls certain intestinal parasites including tapeworms.

Iverhart Max for Dogs

Iverhart Plus for Dogs

MilbeGuard Tablets for Dogs

NexGard PLUS is a new one-and-done monthly combination product for dogs that protects against fleas, ticks, heartworm disease, roundworms and hookworms. Tasty beef-flavored soft chew is designed to make compliance easy and enjoyable for dog owners

Nexgard PLUS for Dogs

A monthly topical medication that prevents heartworm disease, prevents and controls flea infestations, ear mites, in addition to certain skin mites, ticks, and intestinal parasites.