Total of 4 times....1 big amt that contained hair, 3 smaller ones that had his treats and his food in them. The first time he vomited was considerably runny. Almost a greyish brown color. The others were the color of his food and treats. No diarrhea, No drooling, no muscle twitching, No difficulty breathing either, however his nose is quite warm and he's not moving around as peppy as prior to medicating. He's purring loud as usual but wants to hide and lay down.