Cluster page — medicines optimisation

Medicines optimisation in frailty and the over-75s

Where polypharmacy harm concentrates and structured review delivers the largest outcome gains.

The priority cohort

Why over-75 frailty is the centre of gravity for PCN MO

The over-75 cohort with mild-to-moderate frailty (eFI 0.12–0.36) is where problematic polypharmacy, anticholinergic burden and falls-risk medicines concentrate, and where structured medication review delivers the largest measurable outcome gains: falls reduction, cognitive preservation, reduced unplanned admission and improved quality of life. The PCN DES recognises this by naming the cohort as a priority SMR group.

Frailty-adjusted prescribing is a different clinical discipline from standard adult prescribing: the harm-benefit calculation shifts for primary prevention statins, intensive hypertension control, intensive diabetes control, bisphosphonates and SSRI use. STOPP/START v3, the ACB scale and the Drug Burden Index are the operating tools.

Frailty MO review prompts

What the pharmacist actually checks

  • eFI score and recent change (rising eFI prompts deprescribing review)
  • STOPP v3 — potentially inappropriate prescriptions in older adults
  • START v3 — potentially under-prescribed (e.g. anticoagulant in AF)
  • ACB score — anticholinergic burden ≥3 triggers review
  • Falls-risk medicines — anticholinergics, sedatives, antihypertensives, hypoglycaemics
  • Statin appropriateness in advanced frailty / limited life expectancy
  • Bisphosphonate review beyond 5 years
  • Blood pressure target adjustment per frailty status (NICE NG136)

Cohort numbers

Over-75 MO in a typical 50k PCN

~5,000
Patients over 75 in a typical 50k PCN
30–40%
Of over-75s on 10+ regular medicines
~30%
Of over-75s have measurable frailty (eFI ≥0.12)
20–30%
Medicines stoppable at first SMR in this cohort

Frequently asked questions

Frailty & over-75s MO — FAQs

Why is the over-75 cohort the priority for MO?+

Over-75s are the most polypharmacy-exposed cohort, account for the majority of medication-related hospital admissions, and benefit most from structured review. The PCN DES names them as a priority SMR cohort for exactly this reason.

What is STOPP/START?+

Screening Tool of Older Persons' Prescriptions / Screening Tool to Alert to Right Treatment — an evidence-based list of potentially inappropriate prescriptions and potentially under-prescribed medicines in over-65s. Version 3 (2023) is the current standard.

What is anticholinergic burden?+

The cumulative anticholinergic effect of all an individual's prescribed medicines. Quantified via the Anticholinergic Cognitive Burden (ACB) scale; ACB ≥3 is associated with falls, cognitive impairment and mortality in older adults.

How does frailty modify prescribing decisions?+

Advanced frailty changes the harm-benefit calculation for many long-term medicines: statins, intensive blood pressure control, intensive diabetes control, bisphosphonates, and primary prevention generally. Frailty-adjusted prescribing is core to over-75 MO.

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