ACETYLCYSTEINE SOLUTION, USP, 10% (100 mg/mL), packaged in a) 4 mL Vial NOT FOR INJECTION (NDC 0517-7504-01), and b) 25x4 mL Vials NOT FOR INJECTION (NDC 0517-7504-25), Rx Only, AMERICAN REGENT, INC., SHIRLEY, NY 11967.