It was a pill, but I don't remember what it was called. The dose is only 2.5 mg. He said it's the lowest dose available, and since Cris is so young that's all he can get. But he said it only lasts about 4 hours, so he might end up getting it 2-3 times a day. I would think once would be good, but we'll see. The most problems that he has is at school. Too much stuff going on, too many people, he just can't sit still, keeps screaming out for no reason, won't take a nap (meaning no one else can either), gets up and runs around the room at random. If you are 1-on-1 with him, he's usually pretty good, but in a group setting with a lot of stimuli, he just can't take it. He is either all or nothing. I told the doc the only time he is ever completely still and quiet is when he is sleeping, and even then he is not that still. He is as bad as my other two put together, and they were both put on Ridlin. That was quite a while ago though.
ETA: good luck with your eggs. In my experience, as long as you can keep the humidity under control, the temps are not that much of a factor, unless they get really low or high. I would leave them where they are as long as you can. I have a chick pip in the turner almost every hatch, and they all do ok.