Well, this has come up before and it can be a very foolish way to "save" money as ivermectin is very deadly to some breeds of dogs (primarily herding dogs). My thought is that anyone who can afford to own horses, a huge non-necessity and luxury, can surely afford to give their dog the proper heartworm preventative.
The proper heart worm preventative? Which one is
the proper one? The woman I was talking about has treated her dogs (Aussies) with this mixture every month for many years and she's never lost a herding dog to Ivermectin poisoning. It has no ill side-effects on her dogs, they stay healthy and well taken care of. Her treatment regimen has been cleared as healthy and efficient by 3 different vets.
I can't help but feel offended by the statement that "surely I can afford to buy the proper treatment for my dogs". I think there are several people (like me) that would like to be able to save a few dollars when and wherever they can as long as they do not compromise the health of their pets.
A higher price and a name brand doesn't mean that it's a superior treatment method no more than a higher price and a big farm name means you're getting a superior horse. The name brand means absolutely nothing to me... to me the major factor is it's ability to safely, and efficiently treat my dogs. But hey...that's just me and since I don't have a "name brand" reputation around here you're welcome to blow off my opinion.