I too have used it for years. We are in the deep south and I couldn't image life without it--not to mention what fleas and ticks do to the dogs. My vet sells me the larger doses(for dogs 60lbs and up) and we have figured out each dose for each dog by their weight. I pull the solution out of the package with a needle inject that into a syringe for each dogs weight requirements and this saves me a ton of money. With this it only cost $4 dollars for my yorkies a month to be treated and with that small of expense-who wouldn't.

Sue and my yorkie babes.