Managing Multiple Medications: Polypharmacy Guide for Seniors

What Is Polypharmacy and Why Does It Matter?

Polypharmacy — taking five or more prescription medications simultaneously — affects an estimated 40% of Canadian seniors aged 65 and older. While each medication may be individually necessary, the combination increases the risk of drug interactions, side effects, falls, and hospitalizations. It also significantly increases your monthly drug bill.

The Real Cost of Multiple Medications

A senior taking a typical combination of chronic disease medications faces substantial costs:

Switching entirely to generics saves $257 per month — over $3,000 per year.

Common Drug Interactions Seniors Should Know

When taking multiple medications, interactions become a real concern:

• ACE inhibitors + potassium supplements can cause dangerously high potassium levels
• Warfarin + NSAIDs (like ibuprofen) dramatically increase bleeding risk
• Statins + certain antibiotics (clarithromycin, erythromycin) can increase statin toxicity and muscle damage
• SSRIs + blood thinners increase bleeding risk

What to Do

Ask your pharmacist for a MedsCheck — a free, comprehensive medication review available to Ontario residents taking three or more medications. Other provinces offer similar programs:

• BC: Medication Review Services
• Alberta: Comprehensive Annual Care Plan
• Saskatchewan: Pharmacist medication assessments

Strategies to Simplify Your Regimen

1. Combination Medications

Some drugs combine two active ingredients in one pill, reducing the number of pills you take:

• Amlodipine/atorvastatin (Caduet) — combines blood pressure and cholesterol medication
• Metformin/sitagliptin (Janumet) — combines two diabetes drugs
• Perindopril/amlodipine (Viacoram) — combines two blood pressure drugs

Ask your doctor if any of your medications can be combined. Note that combination drugs are sometimes more expensive than taking the generics separately, so compare on TransparentMedz first.

2. Blister Packs

Most Canadian pharmacies offer blister packaging (also called compliance packaging) that organizes your medications by day and time. Many pharmacies provide this service for free or for a small fee of $2–$5 per week. This reduces missed doses and accidental double-dosing.

3. Medication Synchronization

Ask your pharmacy about med sync programs that align all your refill dates to a single day each month. This reduces pharmacy trips and makes it easier to track what you are taking.

Deprescribing: Safely Reducing Medications

Deprescribing is the supervised process of reducing or stopping medications that may no longer be necessary. Studies show that 20–30% of medications taken by seniors could potentially be reduced or eliminated safely.

Common candidates for deprescribing include:

• Proton pump inhibitors (omeprazole, pantoprazole) taken long-term for acid reflux
• Benzodiazepines (lorazepam, clonazepam) for sleep or anxiety
• Duplicate medications from different prescribers

Never stop a medication on your own. Talk to your doctor or pharmacist about whether deprescribing is appropriate for you.

Saving Money on Multiple Medications

Switch to generics for every medication that has one available.

Use TransparentMedz to compare prices across pharmacies — dispensing fees add up quickly when you fill five or more prescriptions per month.

Choose a pharmacy with low dispensing fees. Paying $4.49 at Costco instead of $12 at a chain pharmacy saves $37.55/month on five medications.

Ask about 90-day supplies to reduce the number of dispensing fees from 12 to 4 per year per medication.

The Bottom Line

Managing polypharmacy is about safety and savings. Start with a medication review, switch to generics, consolidate where possible, and compare pharmacy prices on TransparentMedz to keep costs under control.