I use cow tags zip tied to the dogs collar for ticks and fleas plus cedar bedding.for heartworm I use a liquid with ivomec in it shoot in there mouth once a month 1cc per 14lbs of dog wt. DO NOT USE THIS IF THERE NOT HOUNDS IT CAN KILL COLLIES SHEPARDS ETC. I buy it from a dog supply business in indiana.
1cc of ivomec will treat a 110 pound calf and would be an overdose for dogs. Ivermectin does cross the blood brain barrier.
Dogs need a broad spectrum dewormer that includes tapeworms every month. Reading the product insert (effectiveness) for the new oral tick product, I see Credillo has the best kill.
I used to give my dogs Ivomec for heartworm preventative. Haven't done so lately, because we don't really have heartworms here and I got out of the habit. Your dosage is correct, I'd give 1/2 cc of ivomec injectable (for cattle) to a 50 lb hound. I would suck up half a cc of Ivomec, then suck the rest of the syringe full of soda pop and squirt it in the dogs mouth. Dogs may not care for the taste of Ivomec, but given with a pop mixer I've never had one that didn't like it. As stated, don't give it to collie dogs, there are quite a few medicines that collies and cats can't take (maybe they're related?) that other dogs can. Ivomec is not nearly as poisonous as some let on, 1cc would not harm your average 40-50 lb dog, but it would be a serious overdose to a 14 lber. Not sure if it would really harm it, but I wouldn't try it if I liked the dog much. Years ago I had a dog with mange, the genetic kind, (I don't remember if that is demadectic or sarcoptic, I'm sure Smash can tell us) and my vet told me that at that time they only had one approved medicine that worked on that type of mange. And the FDA had taken it off the market to do further testing, and he was unable to get any. He recommended a non-approved treatment he had had good luck with. 3/4 cc of Ivomec (45 lb dog) given orally, daily for 60 days. It cured the mange, that never reappeared for the remainder of the dogs life, and with no side effects.
I'm assuming MTHunter is using a medicine with a diluted dose of Ivermectin in it, not the injectable cattle Ivomec.