FATRO brand Masterflox (marbofloxacin) is an antibiotic used to treat bacterial infections in pigs. Effective against a range of Gram-positive and Gram-negative bacteria, as well as mycoplasmas. Treats respiratory infections caused by bacteria like Actinobacillus pleuropneumoniae, Pasteurella multocida, and Mycoplasma hyopneumoniae. An EU Authorised medicine.