In the South, with our sometimes "warm" winters, I have just decided that the expense of doing the preventative is very worth it. I would never want to put my dogs through the treatment of curing heartworms..........it is painful to them and they get very, very sick and have to be inactive for quite a while. Not worth doing that to my babies. We do it every month.

Some folks use the 6 month Pro-Heart treatment, which is an injection given by the vet. It is easier to remember. But my vet isn't using it. He said he isn't convinced that it is as effective as the monthly Heartguard, so he won't use it. I know many people who do use it. But there has also been a lot of negative publicity about it causine illness/death in dogs. So, I'm sticking to the monthly, expensive preventative.

Logan