Safe Prescription Drug Use for Older Adults

When Medications Become Complex

Many older adults take multiple prescription medications, often prescribed by different specialists for different conditions, managed across multiple appointments, and potentially reviewed only infrequently. This is an extremely common situation and one that carries risks that are frequently underestimated by patients, family members, and sometimes by healthcare providers.

The term for taking five or more medications simultaneously is polypharmacy, and it affects a significant proportion of adults over sixty. Polypharmacy is not inherently dangerous: sometimes multiple medications are genuinely necessary and beneficial. But it significantly increases the complexity of safe medication management and the risk of interactions, side effects, and errors.

Understanding how to manage this complexity is one of the most practically important health skills an older adult and their family can develop.

The Risks of Multiple Medications

Drug interactions occur when two or more medications affect each other's efficacy or cause combined effects that neither would produce alone. Some interactions are mild and manageable. Others can be serious, causing dangerous changes in blood pressure, heart rhythm, blood clotting, kidney function, or mental state.

Older adults are at higher risk of adverse drug effects for several physiological reasons. Kidney and liver function, which process and eliminate drugs from the body, typically declines with age. This means medications may stay in the system longer and accumulate to higher levels than in younger adults taking the same dose. Body composition changes also affect how drugs are distributed and processed.

Some medications that are commonly prescribed and seem straightforward can cause particular problems in older adults. Non-steroidal anti-inflammatory drugs (like ibuprofen) can affect kidney function and interact with blood thinners. Some antihistamines and sleeping medications affect cognition and balance. Certain blood pressure medications can cause falls if they lower blood pressure too much when standing.

Building a Complete Medication Record

The foundation of safe medication management is having a complete, up-to-date record of everything you take. This includes all prescription medications, over-the-counter medications you take regularly (such as aspirin, antacids, or pain relief), vitamins and supplements, and herbal remedies.

This matters because many people do not mention supplements and herbal remedies to their doctors, assuming they are harmless because they are "natural". Several herbal products have significant drug interactions: St John's Wort affects the metabolism of numerous prescription drugs, ginkgo biloba affects blood clotting, and garlic supplements can interact with blood thinners.

Keep your medication record in writing, carry it with you to all appointments, and make sure a family member or trusted friend has a copy. In an emergency, this record can be critical to the medical team treating you.

Talking to Your Doctor and Pharmacist

Your GP and pharmacist are both important sources of medication safety support. The NHS's Medicines Use Review service allows pharmacists to review all your medications and flag any concerns: ask your pharmacist whether this is available to you.

When a new medication is prescribed, ask these questions before leaving the appointment: Why is this being prescribed? What will it do? What are the common side effects? Are there any interactions with my other medications? Are there any activities, foods, or drinks I should avoid? How will I know if it is working? When will we review whether I still need it?

These are not demanding or difficult questions. Any good prescriber will welcome them. They are the foundation of informed consent and safe medication management.

Organising Your Medications Practically

Practical organisation significantly reduces the risk of errors. A weekly pill organiser, divided by day and time of day, makes it easier to check whether you have taken medications and reduces the risk of double-dosing when memory is uncertain. Fill the organiser at the same time each week, in a quiet moment, double-checking the contents against your medication list.

Take medications at consistent times in relation to daily anchors: with breakfast, before the evening meal, at bedtime. This makes them easier to remember and builds them into routine. Set a phone alarm if helpful.

Store medications correctly. Most medications should be stored at room temperature, away from direct sunlight and away from moisture. The bathroom medicine cabinet, despite its name, is often not ideal because of heat and humidity. Check the storage instructions for each medication. Keep medications out of reach of grandchildren who may visit.

Signs That Something May Be Wrong

Be alert to changes that could indicate a medication problem. New confusion, memory difficulties, or changes in mental sharpness can be side effects of certain medications, particularly if they started or changed recently. Falls or dizziness, particularly when standing, can indicate medications affecting blood pressure or balance. Unusual fatigue, nausea, digestive changes, or new physical symptoms that appeared after starting or changing a medication are worth discussing with your GP.

Do not stop a prescribed medication without speaking to your doctor first. Stopping some medications abruptly can be harmful. But do contact your GP or call 111 if you experience new symptoms that concern you after starting a medication.

Medication Reviews

If you are over sixty-five and take multiple medications, you are entitled to ask your GP for a medication review: a dedicated appointment focused on whether all your current medications are still necessary, whether the doses are appropriate, and whether there are any concerns. These reviews are valuable and underused.

The aim of a medication review is not to remove medications you need. It is to make sure that everything you are taking is still serving your health, at the right dose, without unnecessary interactions or side effects. Sometimes the outcome is that things stay the same. Sometimes medications that were appropriate years ago are no longer necessary or are causing more harm than benefit.

Being an active, informed participant in your own medication management is not only your right: it is one of the most significant things you can do for your health and safety.