* Care must be taken when giving narrow spectrum penicillins to Guinea Pigs, Rabbits, Gerbils, Hamsters and Chinchillas as they can result in '''fatal ''Clostridium difficile'' colitis'''. | * Care must be taken when giving narrow spectrum penicillins to Guinea Pigs, Rabbits, Gerbils, Hamsters and Chinchillas as they can result in '''fatal ''Clostridium difficile'' colitis'''. |