I knew ivomec killed microfilaria...and I thought that the normal monthly dose would keep the microfilaria killed off until the adult worms died off...and I also thought that several high doses of ivomec would kill the adult worms as well...I reckon I have been wrong for many years on that one...
but I will say this...back in 1983 a Foster and Smith catalog put out a recipe to kill heartworms in a dog...they said that it was used extensively in Europe and Australia and that it worked and it only costs a few dollars to do so...I had the catalog saved in my locker at work and a few years later I needed to treat a dog and I thought I had misplaced the catalog...I called Foster and Smith to see if they would send me another catalog from the 1983 issue or to at least give me the recipe over the phone...Well, the Vet paused for a moment and then asked me who I was...then he says that he can not send out that catalog and he can not give the recipe because the veterinary association (some organization) threatened to pull their practicing liscenses because this treatment was not FDA approved...long story short I went thru all my dog magazine storage places and found the catalog...I still have it somewhere around here but that recipe is now burned in my brain...
I have treated 7 or 8 dogs with this treatment and one dog that the vet said it should be put down because it would not make it...back then the only treatment was with arsnic back then and some times the cure was worse than the heartworms...not to mention it cost an arm and a leg to put a dog thru that treatment...
