Off-label use information in electronic drug information resources

Area of Science:

• Pharmacology
• Health Informatics
• Drug Information Systems

Background:

• Electronic drug information resources are crucial for healthcare professionals.
• Accurate and comprehensive data on off-label drug uses is essential for safe and effective patient care.
• Evaluating these resources ensures optimal utilization of drug information.

Purpose of the Study:

• To compare the scope, completeness, and consistency of off-label drug use information across six electronic resources.
• To categorize these resources into tiers based on their performance in providing off-label use data.

Main Methods:

• An evaluation of six electronic drug information resources was performed.
• Off-label uses for the top 50 prescribed medications were extracted.
• Scope, completeness (including cited guidelines, studies, dosage, and significance), and dosing consistency were assessed for 584 uses.

Main Results:

• Micromedex In-Depth Answers listed the most off-label uses (67%).
• Facts and Comparisons Off-Label (median 4/5) and Micromedex In-Depth Answers (median 3.5/5) scored highest for completeness.
• Lexi-Drugs (82%) and Clinical Pharmacology (62%) demonstrated the highest dosing consistency.

Conclusions:

• Micromedex In-Depth and Quick Answers excelled in scope.
• Facts and Comparisons Off-Label and Micromedex In-Depth Answers were top-tiered for completeness.
• Lexi-Drugs and Clinical Pharmacology were the most consistent in providing dosing information for off-label uses.