Patient information leaflets for medicines: using consumer testing to determine the most effective design

Area of Science:

• Health Communication
• Patient Information Design
• Regulatory Compliance

Background:

• European Union mandates comprehensive medicine information leaflets for patients.
• The European Commission (EC) proposed a standardized leaflet model and consumer testing method in 1997.
• Effective patient information is vital for medication safety and adherence.

Purpose of the Study:

• To compare the effectiveness of a European Commission (EC) model leaflet versus an alternative 'Mark II' leaflet based on information design best practices.
• To evaluate consumers' ability to find and understand critical information within medicine leaflets.
• To highlight the importance of patient-centered design in pharmaceutical information.

Main Methods:

• An exploratory study involving two matched groups of 20 consumers each.
• Participants were tasked with locating and comprehending 15 specific pieces of information from two different leaflet formats.
• The EC model leaflet was compared against the Mark II leaflet, designed using information design principles.

Main Results:

• The Mark II leaflet enabled consumers to correctly answer 8 out of 15 questions, significantly outperforming the EC leaflet (3 out of 15).
• Consumers struggled to understand key concepts like medicine interactions and contraindications in the EC leaflet.
• The study identified specific comprehension issues with the prescriptive EC model.

Conclusions:

• Consumer testing is essential for developing patient-oriented medicine information leaflets.
• A rigid, prescriptive model for patient information leaflets hinders effective communication.
• Adopting best practices in information design enhances patient comprehension and medication safety.