Pharmacy Services for Older Adults: Medication Reviews and Adherence Programs

Polypharmacy — the clinical term for taking five or more medications simultaneously — affects roughly 40 percent of adults over 65 in the United States, according to the American Society of Consultant Pharmacists. That statistic alone explains why pharmacy services designed specifically for older adults have become one of the more consequential, and often underused, tools in elder care. This page covers how medication reviews and adherence programs work, what situations call for them, and how to think about the boundaries between pharmacist-led services and physician-directed care.

Definition and scope

Pharmacy services for older adults span a continuum that runs well beyond dispensing pills. At the structured end sits the Medication Therapy Management (MTM) program, a service class formalized under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 and administered through Part D plans. MTM requires eligible beneficiaries — those with multiple chronic conditions, taking multiple covered drugs, and likely to exceed a defined drug cost threshold — to receive a Comprehensive Medication Review (CMR) at least once per year (CMS MTM Program).

A CMR is a structured, interactive pharmacist consultation — conducted in person, by phone, or via telehealth — that produces a written Personal Medication List and a Medication Action Plan. Alongside CMR sits the Targeted Medication Review (TMR), a shorter, condition-specific check-in that MTM plans must offer quarterly.

Beyond Medicare's formal program, retail pharmacies, hospital discharge teams, and in-home care services providers each operate their own medication review protocols. The scope of any given service depends on the setting, the pharmacist's authority under state law, and whether a collaborative practice agreement with a prescriber is in place.

How it works

A full Comprehensive Medication Review follows a recognizable sequence:

1. Pre-consultation data gathering — The pharmacist pulls prescription history, over-the-counter drug records, and any supplement lists the patient provides. This step catches the interactions that prescribers often miss simply because no single provider sees the complete picture.
2. Interactive interview — The pharmacist reviews each medication with the patient: what it's for, how it's being taken, whether side effects have appeared, and whether the patient is actually taking it as prescribed.
3. Drug therapy problem identification — Using clinical decision tools, the pharmacist flags issues in categories established by the Pharmacist's Patient Care Process: unnecessary drug therapy, wrong drug, dosage too high or too low, adverse drug reactions, and nonadherence.
4. Action plan generation — A written summary goes to both the patient and the prescribing physician, with prioritized recommendations rather than a raw list of problems.
5. Follow-up TMRs — Quarterly check-ins assess whether the action plan items were addressed.

Medication management for elderly involves a parallel set of considerations around adherence — specifically, why patients don't take medications as prescribed. The reasons divide into two broad categories: unintentional nonadherence (forgetting, confusion about instructions, physical difficulty opening bottles) and intentional nonadherence (cost concerns, side effect avoidance, disbelief in the medication's value). Adherence programs use different tools for each. Pill organizers, blister packs, automated dispensing devices, and phone-based reminder systems address unintentional gaps. Cost counseling, motivational interviewing, and therapeutic substitution address intentional ones.

Common scenarios

Three situations account for the majority of pharmacist-led interventions in older adult populations.

Post-hospitalization transitions are among the highest-risk moments in elder care. A 2019 analysis published in JAMA Internal Medicine found that adverse drug events cause roughly 1 in 5 hospital readmissions among older adults. Discharge medication reconciliation — where a pharmacist cross-references what the patient was taking before admission against what the hospital prescribed on discharge — catches duplications, omissions, and dose changes that fall through the cracks when a care team is focused on getting the patient home. This connects directly to the broader challenges covered in transitioning to elder care.

Dementia and cognitive decline create a distinct adherence challenge. Patients with Alzheimer's disease or related dementias may not remember taking a dose — leading to double-dosing — or may resist taking medications entirely. Pharmacists working with families on dementia and Alzheimer's care often recommend blister packaging with labeled days, or automated dispensers that lock until the correct dose time and alert a caregiver if a dose is skipped.

Polypharmacy in chronic conditions management — particularly when a patient is seeing multiple specialists — creates prescribing redundancy. An older adult managing heart failure, Type 2 diabetes, and osteoarthritis may accumulate prescriptions from a cardiologist, an endocrinologist, and an orthopedist, none of whom have a complete view of the medication list. The pharmacist is often the only clinician who sees all of it.

Decision boundaries

Pharmacist authority has real limits, and understanding them prevents both underuse and misplaced expectations.

A pharmacist conducting an MTM review can recommend changes but cannot independently modify a prescription unless a collaborative practice agreement (CPA) is in place. CPAs, which are authorized in most US states but governed by varying scope-of-practice rules, allow pharmacists to adjust doses, switch formulations, or discontinue medications within pre-agreed protocols. Without a CPA, the pharmacist's output is a recommendation to the prescriber — valuable, but dependent on physician follow-through.

MTM eligibility is also not universal. Medicare Part D beneficiaries must meet CMS-defined thresholds for chronic conditions (typically 2 to 3 specified conditions), drug count (typically 8 or more covered medications), and projected annual drug spend. Patients who fall below these thresholds — or who are enrolled in Medicare Advantage plans with different MTM protocols — may receive a narrower version of these services.

Families navigating paying for elder care should note that CMRs covered under Part D MTM carry no cost-sharing for eligible beneficiaries. Pharmacy-based adherence tools — smart dispensers, blister packaging services — are typically not covered by Medicare and range from $30 to over $150 per month depending on the device and service tier.

For families coordinating care across multiple providers, care coordination and case management professionals can serve as the connective tissue between pharmacist recommendations and physician implementation — a role that matters most precisely when the medication list is longest.