What are the primary types of Drug Utilization Review (DUR)?

• A. Prospective DUR and Retrospective DUR
• B. Prospective DUR only
• C. Retrospective DUR only
• D. Concurrent DUR only

Answer: (A)

Drug Utilization Review focuses on preventing inappropriate drug use by examining prescribing and dispensing at different times. The two main phases are prospective DUR, which screens a prescription before it’s filled to catch issues like harmful interactions, allergies, duplicate therapies, or improper dosing, and retrospective DUR, which analyzes dispensing and claims data after the fact to identify patterns of misuse, safety concerns, or suboptimal therapy across patients. This combination provides both real-time prevention and population-level insight for quality improvement. While some programs also use concurrent DUR to assess care as it happens, the primary concepts taught are prospective and retrospective, which is why that option is the best answer.