The Institute for Safe Medication Practices (ISMP) hierarchy of effectiveness of risk-reduction strategies ranks interventions from the least to most effective. Using 665 pharmacy-related medication safety reports at one hospital, researchers evaluated the actionability of the reports on the ISMP hierarchy. Three-quarters of the reports were only actionable at the least effective levels (e.g., suggestions to "be more careful", educational programs). The researchers suggest events that lent themselves to more effective levels of intervention were acted upon and, therefore, recurred less frequently.