We have an 11wk old pup who had a case of hookworms. He was given Panacur and the next day had horrible loose stools. We called the emergency vet clinic and they seemed shocked that he wasn't also given a probiotic, saying that collies usually need them on the daily (let alone when they're prescribed medication) I picked him up an awesome probiotic yogurt that stopped his digestive upset ten minutes after he ate it but it's a little expensive to give him as an every day treat. He's now no longer on medication but I would like to give him a daily dose as the vets recommended. Any suggestions?