Levofloxacin Ophthalmic Solution, 0.5%, Sterile, packaged in 5mL bottles, Rx Only, Manufactured by Hi-Tech Pharmacal Co., Inc., Amityville, NY 11707, NDC 50383-283-05
Failed Impurities/ Degradation Specifications: OOS for related compound (levofloxacin n-oxide) at the 18 month stability time point.
Nationwide
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=D-0514-2017