Heartgard Chewable - Green (136 mcg/6 ct)

Heartgard Chewables for Dogs (ivermectin) help prevent canine heartworm disease. Heartgard Chewables are highly palatable, for convenient administration each month. Most dogs will eat Heartgard Chewables right out of your hand. When given monthly as directed, it is effective in helping to prevent heartworm disease. Heartgard Chewables kill immature heartworms that have been introduced to the dogs within the last 30 days. Heartgard Chewables are available in three dosage strengths. Approved for puppies as young as 6 weeks, pregnant or breeding female dogs and stud dogs.