[haleycookie]

Bravecto doesn’t work that way. It treats for three months out. It wouldn’t make any sense if it just treated for 24 hrs lol. And I would imagine heart worm is in the system longer than 24 hrs, seeing as how giving a heart worm preventative to an already infected dog can be deadly I doubt it has no long term preventative nature to it as this article states. But I was more referring to bravecto. As it has more medication in it and is in the system much longer.