Answer
It is both: levofloxacin is a fluoroquinolone antibiotic and dexamethasone is a corticosteroid.
Sources for this answer
- Ducressa 1 mg/ml + 5 mg/ml, eye drops, solution — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.