SCHAUMBURG, Ill.--(BUSINESS WIRE)--APP Pharmaceuticals, Inc., a wholly owned subsidiary of Fresenius Kabi Pharmaceuticals Holding, Inc., (NASDAQ: APCVZ) announced today that it has received approval from the U.S. Food and Drug Administration (FDA) to market Aztreonam for Injection, USP in two dosage strengths. Aztreonam is therapeutically equivalent to the reference-listed drug Azactam®, which is marketed by Bristol-Myers Squibb.