I've done cheese, bread and peanut butter. If he is throwing up, Chloe's Mommy's method works. It will be a bit of a fight. I had to do that with my lab two weeks ago when she got a stomach bacteria. She liked the chewable anti-diarreal medicine, but the antibiotic, she hated. I had to pry her mouth open, put the pill in there and hold her mouth shut. I found that when I rubbed her throat, she would swallow it. I learned this from my vet when my old GSD was taking meds. It sounds rather primative, but it does work.