Description This 6 pack of Heartgard is suitable for preventing heartworm in dogs weighing up to 11kg. Potentially deadly heartworm disease is a threat no matter where you live. Just one bite from an infected mosquito can transmit larvae to your dog that can eventually cause severe damage and even death. The monthly real-beef chewables made by Heartgard Plus (ivermectin/pyrantel) help prevent heartworm disease in dogs and puppies from 6 weeks of age. SKU: 122614000060 122614000060 Additional Information Ingredients: Ivermectin 68mcg, Pyrantel 57mg per chewable. Manufactured In: United States (Puerto Rico) Breed Size: Small Life Stage: All Health Benefit: Heartworm Pet Weight: 11kg Product Type: Chewable Tablet Dosage: Monthly Pet: Dog Product Category: Flea, Tick & Worming