The document outlines the core elements of effective hospital antibiotic stewardship programs. It recommends that programs appoint a physician leader and pharmacist leader to be accountable for the program. Programs should implement at least one action to improve antibiotic use, such as reviewing ongoing treatment need after an initial period. They should also track antibiotic prescribing patterns, report information on use and resistance to clinicians, and provide education to physicians about appropriate antibiotic prescribing. Leadership support, multi-disciplinary collaboration, and resources are keys to success.