I have two very flea-infested kittens in the yard. I bought a generic version of Capstar at Walmart and was planning to give it to them just as a way to try and cut down on the amount of fleas quickly before the kittens weaken too much. I bought it because they said I could give it to kittens 4 weeks or older. The orange kitten is precisely 7 weeks old, and the white one is a couple days over six weeks old. But I have no idea if they weigh 2 pounds or more. I have no scale. I researched a lot and everybody disagrees about whether or not you can split a pill in half, which is what I was thinking about trying. Partly because I'm terrified of the horrific side effects I've read about, but also because they might be slightly under 2 pounds. I think they're both slightly under 2 pounds. I read that at 4 weeks they should be about 1 pound, 8 weeks about 2 pounds, and so forth so that confirms to me that they're probably under 2 pounds. I'm worried that they're going to spiral quickly if I don't do something fast and I might not have the time to wait until they've gained extra weight. In fact, I fear very quickly that they'll begin to lose weight rapidly with such an infestation. Does anyone here have any insight they'd be willing to share? I'd appreciate it.