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Helping patients simplify and safely use complex prescription regimens
Michael S Wolf1, Laura M Curtis, Katherine Waite
1Health Literacy and Learning Program, Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. mswolf@northwestern.edu
Archives of Internal Medicine
|March 2, 2011
Summary
Many older adults do not simplify their medication schedules, leading to complex regimens. Standardized medication instructions could improve patient adherence and safe medication use.
Area of Science:
- Geriatric Medicine
- Health Literacy
- Patient Adherence
Background:
- Prescription writing and transcription vary, causing patient confusion with medication instructions.
- A universal medication schedule (UMS) was proposed to standardize prescribing to 4 daily intervals, simplifying complex regimens.
- Investigated patient medication consolidation and regimen complexity to support standardization.
Purpose of the Study:
- To determine if patients consolidate their medications into simplified schedules.
- To identify evidence of unnecessary complexity in medication regimens.
- To assess the potential benefits of a universal medication schedule for patient adherence.
Main Methods:
- Conducted structured interviews with 464 adults aged 55-74.
- Participants demonstrated taking a hypothetical 7-drug regimen over 24 hours.
- Examined root causes for patients complicating regimens beyond 4 daily doses.
Main Results:
- Patients averaged 6 daily dosing times (range 3-14), with 29.3% taking medications 7+ times daily.
- Low literacy independently predicted more frequent daily dosing (P=.02).
- Variable dosing instructions (e.g., "every 12 hours" vs. "twice daily") resulted in 79% of patients failing to consolidate medications.
Conclusions:
- Many patients, particularly those with low health literacy, do not efficiently consolidate medication regimens, potentially hindering adherence.
- Standardized instructions, like those in the universal medication schedule, may help patients organize and adhere to complex medication schedules.
- Task-centered strategies can support patients in managing medication regimens more effectively.
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