Metronidazole

Metronidazole is widely used to treat infections of Giardia in dogs, cats, and other companion animals, although it does not reliably clear infection with this organism and is being supplanted by fenbendazole for this purpose in dogs and cats. It is also used for the management of chronic inflammatory bowel disease in cats and dogs.

Another common usage is the treatment of systemic and/or gastrointestinal clostridial infections in horses.