Used primarily as a broad-spectrum antibiotic in the treatment of bacterial infections, particularly those affecting the urinary tract, respiratory system, and skin. It is effective against both Gram-negative and some Gram-positive bacteria due to its ability to inhibit bacterial DNA gyrase, an enzyme essential for DNA replication. Commonly formulated in oral tablets and ophthalmic solutions, it is prescribed for conditions such as uncomplicated urinary tract infections and bacterial conjunctivitis. Its use is limited in some regions due to the risk of phototoxicity with sun exposure.