No I was talking about a QH/Welsh pony filly...I don't know why. I need to call him. But he flat out said when I mentioned worming her...don't use ivermectin on horses under the age of 2. Like I said, I was too stunned to think to ask why. I had been asking about perpetual loose stools on this filly her entire life from an unknown cause. Turns out, Welshies are super easy keepers and she couldn't handle any grain or alfalfa. On plain coastal her squirts went away. So I have no idea. He is the kind of vet that tries to keep up with the latest information, even though he is an old timer. Not sure what to say. Gonna go google it now...