Real beef monthly chewable tablet to prevent heartworm infection in dogs.

Available in packs of 6 chewables for dogs in 3 bodyweight categories:

Small (Blue) Up to 11kg
Medium (Green) 12-22kg
Large (Brown) 23-45kg

Consult a veterinarian if your dog has not previously been on heartworm prevention medication or if there has been a lapse in your dogs preventive program.  Click here to view all Heartgard products.