For the treatment of the following infections caused by designated susceptible Gram-negative microorganisms: Complicated Intra-abdominal Infections (cIAI), used in combination with metronidazole, in adult and pediatric patients 3 months and older or complicated Urinary Tract Infections (cUTI), including Pyelonephritis, in adult and pediatric patients 3 months and older or hospital-acquired Bacterial Pneumonia and Ventilator-associated Bacterial Pneumonia (HABP/VABP) in patients 18 years and older.