Hope you find a food that will work for Norman soon!! You have received excellent advice from everyone!! My baby Zeus had Coccidiosis and was treated for 10 days with Albon. He then went back for a recheck and was negative. My Yorkie had it as well when we go him; however, his was much more severe. He had to be treated for three weeks and has been negative since. He is now 4 years old with no recurrences.