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. Metronidazole is used in the aquarium hobby to treat ornamental fish and as a broad-spectrum treatment for bacterial and protozoan infections in reptiles and amphibians. In general, the veterinary community may use metronidazole for any potentially susceptible anaerobic infection. The U.S. Food and Drug Administration (FDA) suggests it only be used when necessary because it has been shown to be carcinogenic in mice and rats, as well as to prevent antimicrobial resistance. References External links AbbVie brands Antiprotozoal agents Disulfiram-like drugs Fishkeeping French inventions IARC Group 2B carcinogens Nitroimidazole antibiotics Pfizer brands Wikipedia medicine articles ready to translate Sanofi World Health Organization essential medicines