Metronidazole is helpful for treating several health conditions in dogs, though it’s important to understand its usage and whether there are any side effects or alternative treatments. Metronidazole has been successfully used to prevent infection after colonic surgery. Nitroimidazoles also act as radiosensitizers, and metronidazole has been used as an adjunct to the radiotherapy of solid tumors. Adverse effects are not commonly associated with metronidazole. The use of metronidazole to treat Giardia infections and most other infections in dogs, cats, small mammals, birds, reptiles, and other animals is off label (extra label). Metronidazole is a commonly prescribed antibiotic for dogs with diarrhea and other gastrointestinal problems. Let’s take a closer look at what metronidazole can treat, common side effects, and how you can best treat your dog’s diarrhea. Expert vet insights on Metronidazole for pets. Learn its antibacterial & antiprotozoal uses, treating infections in dogs, cats. Understand dosage & safety from vets. Metronidazole is a safe antibiotic for dogs when given as prescribed by a veterinarian. Like most medications, it has its own set of warnings and side effects to be aware of. Calculate the correct metronidazole dosage for your dog with our easy-to-use calculator. Ensure safe and effective treatment for your furry friend. Metronidazole is an antibiotic and antiprotozoal prescription medication that kills certain types of bacteria and protozoa parasites. In dogs and cats, it is most used to treat infections and inflammation in the digestive tract. Is metronidazole a strong antibiotic for dogs? Yes — it is considered a potent antibiotic and antiprotozoal agent, particularly effective against anaerobic infections. The empirical use of metronidazole for acute diarrhea in dogs has been a common practice in veterinary medicine for many decades; however, recent studies evaluating its use suggest it may be inappropriately utilized in many cases.