Defining and classifying terminology for medication harm: a call for consensus.

Area of Science:

• Pharmacovigilance
• Health Services Research
• Clinical Pharmacology

Background:

• Medication-related harm presents a significant challenge due to diverse terminology and definitions.
• Inconsistent understanding impacts researchers, clinicians, and regulatory bodies.
• Existing frameworks lack uniformity in describing and classifying medication harm.

Purpose of the Study:

• To review the variety of terms used for medication harm.
• To compare existing definitions, classifications, and models of medication harm.
• To identify useful approaches for clinical practice and research.

Main Methods:

• A narrative review of key literature was conducted.
• Studies focusing on defining and classifying medication harm terminology were analyzed.
• Existing models were compared to highlight similarities and differences.

Main Results:

• Numerous terms are used to describe medication harm, with significant inconsistency in definitions and classifications.
• Identified limitations include exclusion of harm types, ambiguous wording, and lack of consensus on subclassifications.
• Overlapping elements were found in key models, aiding in comparison.

Conclusions:

• Lack of uniformity in medication harm terminology impedes data quantification, comparison, and extrapolation.
• There is an urgent need for international consensus on standardized descriptors.
• Adoption of standard terms will foster quality improvement and enhance patient safety in medication use.