[Yorkie Luv of 3]

my girls use Iverhart MAX,, which is rated 6 - 12 lbs.,, BUT,, it is what our Vets here recommend and they made a call to Iverhart in front of me with our questions on the possibile problems it might have for smaller dogs,, it basically boiled down to,, only thing is SOME dogs (larger or smaller) get real upset tummies or loose bowels,, I spoke at length with both the vets , and they agreed it was the best to use and since its only slight loose stools the day of giving them the pills,, I'm fine with it,, they seem fine with it,, its what we use,, and it covers Hookworm, Whipworms AND TAPEWORM,, besides the Heartworm protection,,, so basically all around covered.