Medication reconciliation and anticholinergic burden

The input problem comes before the scoring problem

An anticholinergic review can use the correct scale and still be wrong if the medication list is inaccurate. A discontinued medicine may remain active in a chart, a nonprescription product may be missing, or a brand and generic entry may describe the same ingredient. Source fidelity cannot compensate for an incorrect exposure history.

The AHRQ medication-reconciliation toolkit provides the broader workflow context. This guide focuses on the information needed to connect a reconciled list with UnifiedACB’s source observations. It is a process for clarifying evidence inputs, not an instruction to change treatment.

Collect the details that change the interpretation

For each product, identify the active ingredient or ingredients, strength, formulation, route and schedule. Record the indication and whether the person is actually using it. A list containing only brand names and “as directed” may not provide enough detail for a source-specific interpretation.

Separate three facts when possible: what was prescribed, what was supplied and what was taken. They can differ without anyone deliberately doing something wrong. A patient may have received a new instruction that has not reached every record, or a medicine may be available for occasional use without being taken regularly.

For as-needed treatment, describe actual recent use rather than assuming either the maximum permitted amount or no exposure. The appropriate period depends on the review question. A recent symptom and a long-term exposure analysis do not require identical histories.

Resolve duplicate-looking entries carefully

Two entries may be duplicates, different formulations or intentionally distinct components of a regimen. Confirm the relationship before removing one from the review. Brand and generic names can describe the same ingredient, while similar names can describe different medicines.

Combination products require particular care. The full ingredient list may reveal an exposure that is not obvious from the product name. Conversely, a published score for a named combination should not be split into invented component values unless the source defines that interpretation.

UnifiedACB’s public records retain preferred medication names, aliases and original source labels. Those fields help with retrieval, but a lexical match does not settle every product-equivalence question. The intended product must still be established.

Keep route and formulation attached during matching

A reconciliation process should not lose qualifiers when it converts a familiar product name into a generic label. Route and formulation can determine whether a source statement applies. An oral-use criterion should not silently become a whole-drug statement, and a local preparation should not inherit a systemic claim without evidence.

When a historical source lacks that detail, record the limitation. Do not complete the field by assuming the most common route. The resulting comparison can still be useful if it is described accurately as an ingredient-level or source-limited assessment.

Mark what remains unresolved

Conflicting instructions, uncertain use and incomplete product identification are not numerical zeros. They are questions to resolve with the person, pharmacy or responsible clinician as appropriate. A transparent list records the uncertainty and its source rather than hiding it inside a calculated result.

Source coverage is a separate uncertainty. A fully reconciled medicine may have no verified public observation in a requested scale. The dataset’s explicit evidence states make it possible to distinguish that gap from a published zero. Medication-history uncertainty and source-data missingness should not be collapsed into one label.

Attach the evidence after reconciliation

Once the ingredient and use are clear, retain the source name, version, value and locator for each applicable observation. If several sources differ, display them separately. If a source has no row, report that boundary. Do not borrow another scale’s value to make the assessment appear complete.

Supplemental geriatric criteria can then be considered in their clinical context. They may require an indication, total daily dose or condition that is not captured by the source-scale entry. The reconciled history provides the information needed to ask the right clarification.

Finish with a reviewable record

A useful result identifies the reconciled list, the date or exposure period, unresolved questions and the exact source method used. If another clinician reads it later, they should be able to distinguish a change in medication use from a change in source version or documentation.

The value of reconciliation is not that it guarantees a correct treatment decision. It makes the exposure evidence trustworthy enough to support one. Accurate inputs, visible uncertainty and retained provenance allow the clinical review to focus on the person’s symptoms, benefits and goals.

References

1. Vennard O, Stewart C, Tolia M, Soiza RL, Myint PK. Anticholinergic Medication Burden Scales: A Systematic Review. J Am Geriatr Soc. 2026;74(6):1771-1784. Source
2. American Geriatrics Society 2023 Updated AGS Beers Criteria for Potentially Inappropriate Medication Use in Older Adults. J Am Geriatr Soc. 2023;71:2052-2081. Source
3. American Geriatrics Society Beers Criteria Alternatives Panel. Alternative Treatments to Selected Medications in the 2023 AGS Beers Criteria. J Am Geriatr Soc. 2025;73:2657-2677. Source
4. Fox C, et al. Effect of medications with anti-cholinergic properties on cognitive function, delirium, physical function and mortality: a systematic review. Age Ageing. 2014;43:604-615. Source
5. Ruxton K, Woodman RJ, Mangoni AA. Drugs with anticholinergic effects and cognitive impairment, falls and all-cause mortality in older adults: a systematic review and meta-analysis. Br J Clin Pharmacol. 2015;80(2):209-220. doi:10.1111/bcp.12617. Source
6. Egberts A, et al. Anticholinergic Drug Burden and Delirium: A Systematic Review. J Am Med Dir Assoc. 2021;22:65-73.e4. Source
7. Agency for Healthcare Research and Quality. Medications at Transitions and Clinical Handoffs (MATCH) Toolkit for Medication Reconciliation. Source
8. UnifiedACB. Preserved public source-observation dataset, v3.0 RC12 final; inspected for this editorial revision. Source

Disclosure

Funding: None. Conflict of interest: None declared for the UnifiedACB educational project.

Educational evidence summary. This content does not provide patient-specific medical advice and does not replace clinical judgment, medication reconciliation, or prescribing guidance.