Our last yorkie had genetic IBD and we had her on metronidazole for most of her life. It was the only thing that worked for her and she lived to 12 1/2 years but the drug caught up to her. It can affect their nervous system and she started have seizures. At that time that was all we could use and we even had her to the University Animal Hospital in St. Paul,Mn. Hope everything goes ok for you. Susan |