Metronidazole is used as an anti-diarrheal medication that treat inflammation of the large intestine in dogs and cats. Learn about Flagyl (Metronidazole) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. Healthy Dogs; Featured Topics. When Autism Grows Up; Top Children's Hospitals Ranked;. FLAGYL 500 MG TABLET. Identification color blue shape oblong imprint FLAGYL, 500 Dogs and Cats Metronidazole is used to treat protozoal infections in dogs and cats including Giardia, Entamoeba, Trichomonas and Balantidium. It also is used to treat. Metronidazole 200mg tablets for dogs FDA Approved Pharmacy, No prescription. Flagyl for cats. Flagyl for gum infection, flagyl iv compatibility. Patient information for METRONIDAZOLE 200MG TABLETS Including dosage instructions and possible side effects. Metronidazole is a prescription-only medication that can be taken orally or externally, depending on the illness being treated. It is not yet approved by the FDA for. Metronidazole is an antibiotic for dogs and cats used to treat a variety of ailments including inflammatory bowel disease, diarrhea, and oral or dental infections. Metronidazole for dogs and cats is an antimicrobial antibiotic used for the effective treatment of many different diseases and conditions in dogs, cats, and horses. Metronidazole is available in 500 mg/vial and 5 mg/ml injectable solutions. Dosing Information of Metronidazole for Dogs and Cats.