Due to the potential of loose particulate matter on the syringe plunger, Hospira Inc., a Pfizer company, issued a recall of lots 72680LL and 76510LL of naloxone hydrochloride injection, USP, 0.4 mg/mL, 1 mL in the 2.5-mL, Carpuject Single-use cartridge syringe system (NDC 0409-1782-69).