Metronidazole (
Flagyl Rx) is also helpful in inflammatory bowel disease, so a response to it can be an indication that problem is present, if there is a relapse after it is withdrawn.
There are many clinical reports of chronic diarrhea associated with this organism and it would be killed by metronidazole (
Flagyl Rx) and fenbendazole (Panacur Rx) so the response to medication might be a clue that it was present.
Most vets use metronidazole (
Flagyl Rx) or fenbendazole (Panacur Rx) for this.