Enrofloxacin is an antibiotic that belongs to the fluoroquinolone group, more specifically the 6-fluoro-7-piperazinyl-4-quinolones. This antibiotic is widely used in veterinary medicine as an antibacterial agent, showing high activity against both Gram-negative and Gram-positive bacteria. This compound is a chemotherapeutic, and it was first synthesized in 1983 from nalidixic acid, while the first enrofloxacin-based medicinal product was marketed in 1991 as an oral drug for poultry by Bayer under the trade name Baytril. Currently, the product is approved by the European Medicines Agency (EMA) in both injectable and tablet forms.