Ask your vet to determine whether your pup is at risk of experiencing any side effects from Credelio chewable tablets for dogs, including increased urination, weight loss, diarrhea or elevated blood urea nitrogen. High levels of blood nitrogen in dogs is caused by a buildup of waste materials such as creatine, urea, cells and food. This can damage your dog’s kidneys. Look out for excess urination, nausea, vomiting, constipation, loss of weight or appetite and runny stools in your pup. If these or other side effects occur, consult your veterinarian.