Heartgard Plus is the vet’s first choice for heartworm disease prevention. This beef-flavored tablet treats heartworm larvae and protects dogs from harmful heartworm infections. The highly palatable chew is easy to administer and the monthly treatment controls heartworms year around. The oral treatment is also useful in treating roundworms and hookworms in dogs. Buy Heartgard plus online at the lowest price at DiscountPetCare with free shipping.