Ceftriaxone Na 250 mg/mL in 5% dextrose injection or bacteriostatic water for injection or 1% lidocaine-HCl injection in polypropylene syringes were stable for 8 wk at -15° followed by 1 day at 20° or 10 days at 4°.However, after being thawed and stored at 4 or 20°, all the solutions except ceftriaxone Na in 5% dextrose injection initially failed to meet USP limits for particulates in small-volume injections.