💊 Men's Health

Medication Safety in Elderly Nigerians — Polypharmacy Dangers

Why taking many medicines is particularly risky for older adults

Polypharmacy — the concurrent use of five or more medications — is increasingly common in elderly Nigerians as multiple chronic conditions (hypertension, diabetes, arthritis, heart failure, prostate disease) accumulate with age. Studies in Nigerian elderly populations show that 20–40% take five or more medications daily. The risks of polypharmacy in the elderly are disproportionate: age-related changes in kidney and liver function alter drug metabolism; cognitive impairment leads to medication errors; drug-drug interactions multiply; and elderly people are more vulnerable to side effects that are dismissed as 'old age' rather than recognised as drug reactions. Falls, confusion, incontinence, and malnutrition are all commonly drug-induced in elderly patients.

Signs and Symptoms

✓ Possible drug side effects mistaken for 'old age':

✓ Falls and dizziness: antihypertensives, diuretics, sleeping tablets, antipsychotics

✓ Confusion and memory problems: anticholinergics, benzodiazepines, opioids, many antihistamines

✓ Urinary incontinence or retention: diuretics, anticholinergics, alpha-blockers

✓ Constipation: opioids, iron tablets, calcium channel blockers, anticholinergics

✓ Loss of appetite and weight loss: digoxin toxicity, metformin GI effects, NSAIDs causing gastric ulcers

✓ Kidney failure: NSAIDs, ACE inhibitors + diuretics in combination (triple whammy)

Risk Factors

Age > 75: reduced kidney function (GFR falls 1% per year from age 40), reduced liver metabolism, reduced albumin (affecting drug binding)
Multiple prescribers: cardiologist, nephrologist, and GP all prescribing independently without awareness of each other's medications
Self-medicating with OTC drugs, herbal medicines, and analgesics on top of prescribed medications
Cognitive impairment: medication errors — wrong dose, missed doses, double-dosing
Low literacy: inability to read prescription labels
Financial constraints: stopping expensive drugs without telling the doctor

When to Seek Help

Elderly person taking 5+ medications at any reviewMedication review — apply the 'prescribing cascade' concept: is each drug actually needed?

Any new symptom in an elderly patientFirst ask: 'Could this be a drug side effect?' before adding another drug to treat the new symptom

After a fall, confusion episode, or urinary incontinence developsMedication review — these are among the most commonly drug-caused problems in elderly patients

Elderly patient being admitted to hospitalComplete medication reconciliation — a significant proportion of drug-related adverse events occur at transitions of care

Kidney function declining in an elderly patientDose adjustments or drug stops required — many drugs accumulate dangerously as kidneys fail

Tests & Diagnosis

🧪 Renal function (creatinine and eGFR)

Annual minimum in elderly patients on any nephrotoxic drug (NSAIDs, ACE inhibitors, metformin). Drug doses must be adjusted for eGFR

🧪 Liver function tests

For elderly patients on hepatotoxic drugs (statins, methotrexate, antifungals)

🧪 Thyroid function

Amiodarone (for atrial fibrillation) frequently causes thyroid problems — annual monitoring

🧪 INR/prothrombin time

Warfarin monitoring — elderly are more sensitive and more liable to drug interactions that change INR

🧪 Medication adherence assessment

Pill count, patient interview, Morisky scale — poor adherence is very common in elderly patients

Treatment Options

Medication review using Beers Criteria or STOPP/START

Validated tools identify drugs that are potentially inappropriate in elderly patients. STOPP (Screening Tool of Older People's Prescriptions) lists 87 drugs to consider stopping. STOPP/START available free online

Deprescribing

Systematic process of dose reduction or stopping drugs that are no longer needed, harmful, or where risks outweigh benefits. Must be done gradually for some drugs (benzodiazepines, opioids, PPIs). Many patients improve significantly when unnecessary drugs are removed

Drugs particularly inappropriate in elderly (Beers list highlights)

Benzodiazepines and Z-drugs (zopiclone, zolpidem) — falls, cognitive impairment. First-generation antihistamines (chlorphenamine, promethazine) — anticholinergic confusion. NSAIDs (ibuprofen, diclofenac) — kidney failure, GI bleeding. Antipsychotics for non-psychiatric indications — stroke, falls, death. Digoxin > 0.125mg daily — toxicity risk

Simplification of regimen

Once-daily formulations, blister packs, clearly labelled packaging, pill organisers. Medication administration aids for those with poor eyesight or arthritis

Single prescriber coordination

Ensure one doctor (family physician or internist) has full oversight of all medications from all sources — including OTC and herbal. Take the complete list to every appointment

Frequently Asked Questions

My elderly father takes 8 medicines — is this safe?

Eight medications in an elderly person warrants review — not because the number itself is dangerous, but because each medication adds risk of side effects and interactions. A medication review by a doctor who has the full list can identify drugs that are duplicates, no longer necessary, or likely to cause the problems being experienced. Ask for this review explicitly.

Can I stop my parent's medicines without telling the doctor?

Do not stop medicines abruptly without medical advice — some drugs cause dangerous rebound effects when stopped suddenly (antihypertensives can cause hypertensive crisis rebound, benzodiazepines cause seizures, steroids cause adrenal crisis). If you are concerned about a drug, raise it with the prescribing doctor.

How do I keep track of all the medicines?

A medication list card — written with drug name, dose, frequency, and what it is for — carried by the patient to all appointments is invaluable. Blister packs with days printed (Mon, Tue, etc.) help adherence and identify missed doses. Phone alarm reminders for elderly patients who use smartphones.

My mother keeps forgetting her medicines — what should I do?

This is extremely common. Solutions: simplify to once-daily dosing where possible (ask doctor for long-acting formulations). Pill organiser (dosette box) — fill weekly. Phone or watch alarm reminder. Family member assigned to give the morning dose. In severe cognitive impairment, supervised medication administration is needed.