Medication errors: what they are, how they happen, and how to avoid them.

Area of Science:

• Pharmacology
• Patient Safety
• Health Systems

Background:

• Medication errors are failures in the treatment process with potential for patient harm.
• These errors span prescribing, dispensing, administration, and monitoring stages.
• Errors can be classified psychologically as knowledge-, rule-, action-, or memory-based.

Purpose of the Study:

• To define and categorize medication errors.
• To highlight the importance of detecting all errors, regardless of severity.
• To emphasize the role of balanced prescribing in optimizing therapeutic benefit and minimizing harm.

Main Methods:

• Review and classification of medication errors across the treatment pathway.
• Psychological classification of errors (knowledge-, rule-, action-, memory-based).
• Definition of balanced prescribing.

Main Results:

• Medication errors encompass a wide range of failures, from prescribing faults to administration mistakes.
• Minor errors, often overlooked, can signal system failures leading to serious harm.
• Balanced prescribing, aligning drug action with disease pathophysiology, is key to minimizing risks.

Conclusions:

• Systematic identification and reporting of medication errors are vital for patient safety.
• A blame-free environment is essential for encouraging error reporting.
• Implementing balanced prescribing strategies can significantly reduce medication-related harm.