Despite long-standing recognition by clinicians and the public, the problem of inappropriate antibiotic prescribing is, unfortunately, persistent. Inappropriate antibiotic prescribing not only harms our communities by contributing to the spread of antibiotic-resistant infections, but it also directly harms patients by leading to adverse drug events , unnecessary costs , and serious complications , such as Clostridium difficile colitis. Inappropriate antibiotic-prescribing encompasses several domains (table 1).
The most important is unnecessary antibiotic prescribing (or overuse), which refers to prescribing an antibiotic when it is not indicated (eg, for a viral infection). At least 30% of all antibiotics prescribed in outpatient settings are considered unnecessary; this estimate rises to 50% for respiratory tract infections , which collectively are responsible for the largest number of…