What is the most common heartworm prevention method for dogs?

The most common heartworm prevention method for dogs involves the use of monthly oral or topical medication. These preventatives work by targeting the immature heartworm larvae, which are transmitted through mosquito bites. Administering these medications regularly—typically once a month—is critical, as it ensures a consistent level of the active ingredient in the dog’s system to effectively kill any larvae before they mature into adult worms.

While annual vaccinations, daily exercise, and special dietary supplements can contribute to general health and wellbeing, they do not specifically target heartworm prevention. Vaccines for other diseases may be important, but they do not prevent heartworm infection. Daily exercise and proper nutrition play vital roles in maintaining a dog’s overall health but are not mechanisms for preventing heartworm disease. Therefore, relying on monthly oral or topical medications remains the most effective and widely recommended strategy for heartworm prevention in dogs.