[weezerweeks]

You are so right Patty my vet used the arsenic but first we had to take antibiotic and prednisone a month but the worst part was keeping him calm for a month while the heartworms were dying and traveling.thank goodness we just had the 2 shots 24 hours apart but did not have to go back in a month for the second one.my vet says he has had less problems with Heartgard than any other heart preventive.