Sulfadiazine is a type of antibiotic that belongs to the sulfonamide class. It works by inhibiting the growth of bacteria, making it effective in treating various bacterial infections. Commonly, it is used to treat conditions like urinary tract infections and certain types of pneumonia. In addition to its use in humans, sulfadiazine is also employed in veterinary medicine. It can be used to treat infections in animals, particularly in dogs and cats. However, it is important to use this medication under the guidance of a healthcare professional to avoid potential side effects and ensure proper dosage.