Polypharmacy in Care Homes: Managing Multiple Medications

Polypharmacy — the concurrent use of five or more medications — is common among elderly residents in care homes. Most residents arrive with multiple chronic conditions: hypertension, diabetes, osteoarthritis, heart disease, and cognitive decline are often managed simultaneously with separate prescriptions from different hospitals. For care home operators in Thailand, this creates a manageable but real clinical and operational challenge that requires a clear system from day one.

Why Polypharmacy Is a Higher Risk in Care Settings

Older adults metabolise drugs more slowly as kidney and liver function decline with age. When several residents on complex regimens are managed at once, the risks compound:

Drug–drug interactions: certain combinations amplify or block each other’s effects, undermining treatment or causing unexpected side effects
Drug–disease interactions: a medication given for one condition can worsen another the same resident has
Cumulative side effects: dizziness, sedation, confusion, constipation, and urinary retention are commonly drug-related rather than disease-related
Falls risk: medications that lower blood pressure or affect alertness are a leading factor in falls among elderly residents
Duplication: residents who attend multiple hospitals may be prescribed the same drug class twice without any single prescriber realising it

Medication Reconciliation at Admission

The day a new resident arrives is the most important moment to build a complete and accurate medication list. Make these steps routine:

Collect prescriptions from every hospital and clinic the resident has attended, not just the most recent one
Ask the resident and their family about over-the-counter medicines and supplements — these are frequently overlooked but can interact with prescribed drugs
Enter the full list into the resident record with the drug name, dose, frequency, and the condition it addresses
If the resident takes five or more medications, send the complete list to a physician or pharmacist for review before the care home begins administering them

Daily Medication Administration

Good medication management goes beyond giving the right pill at the right time. A practical daily system should include:

An eMAR (Electronic Medication Administration Record) to log each administration, capture refusals, and flag missed doses — Caleo’s eMAR feature is designed for exactly this, so care staff can record and track medications in one place rather than across paper charts
Clear individual labelling and separate storage for each resident’s medications
A named person responsible for each administration round — ad hoc substitution without handover creates gaps
Immediate documentation when a resident refuses a dose or shows an unexpected reaction

Warning Signs That Need a Prompt Medical Review

Frontline carers who spend time with residents every day often notice changes before anyone else. Contact the prescribing doctor or pharmacist when a resident shows:

New or worsening confusion, unusual drowsiness, or noticeably poor balance after a medication change
Blood pressure that drops sharply on standing (postural hypotension)
New constipation, reduced urine output, or swelling in the limbs
A higher-than-usual fall frequency with no clear environmental cause
After any hospitalisation: the medication list often changes on discharge — this is a high-risk transition point; reconcile the new list against the old one every time

Scheduled Medication Reviews: At Least Twice a Year

Residents on multiple medications should have their full list reviewed by a physician or pharmacist at least every six months — and immediately after any hospitalisation, new diagnosis, or significant change in condition. A care home with complete, structured resident records can produce an accurate medication summary in minutes rather than searching through paper notes, making these reviews faster and safer.

Care homes that manage polypharmacy well protect their residents from avoidable adverse events and demonstrate a standard of care that families and regulators look for. To find out how Caleo supports your medication and health records workflow, get in touch.