Taking several medicines safely: the practical system

Taking one medicine is simple. Taking eight is a logistics problem.

Most medicine-related harm comes from that logistics problem rather than from the medicines themselves.

Start with an accurate list

• Active ingredient name for each item.
• Strength and how often.
• What it is for.
• Who prescribed it and when.
• Anything you have reacted badly to.
• Keep one copy on your phone and one on paper.

Include everything

• Prescriptions from every clinician.
• Anything bought over the counter.
• Supplements and herbal products.
• Creams, drops, inhalers and patches.
• Anything used occasionally.
• Partial lists cause most interaction errors.

Understand what each one does

• Ask what each item is treating.
• Ask what would happen without it.
• Ask how long it is intended to continue.
• Ask how you would know it is working.
• Medicines you do not understand are the ones you stop taking.

Simplify the timing

• Ask whether doses can be aligned to fewer points in the day.
• Ask whether any can be moved to a more convenient time.
• Ask whether combination products would reduce the count.
• Ask whether longer-acting versions exist.
• Every simplification improves the chance you take them.

Use a physical system

• A weekly organiser suits many people.
• Ask your pharmacist to help set it up.
• Some medicines must remain in their original packaging.
• Fill it on the same day each week.
• Keep it somewhere tied to a daily routine.

Build it into existing habits

• Attach doses to meals or to brushing teeth.
• Use alarms for timed medicines.
• Keep travel doses in a bag you always carry.
• Habits survive; intentions do not.

Know the missed dose rule for each

• The correct action differs between medicines.
• Doubling up is dangerous for some.
• Ask your pharmacist for the rule for each item.
• Write it on the list.
• Decide this in advance, not at midnight.

Repeat prescriptions

• Order before you run low, not on the last day.
• Note which items run out at different rates.
• Ask whether the quantities can be synchronised.
• Ask whether a longer supply is possible.
• Running out is a common and avoidable cause of harm.

After a hospital stay

• Medicines are frequently changed during admission.
• Compare the discharge list with your previous one line by line.
• Ask about anything that has stopped, started or changed.
• Take both lists to your pharmacist.
• This is the single highest-risk moment for medicine errors.

Seeing several specialists

• Each may prescribe without full sight of the others.
• Show your complete list at every appointment.
• Ask each whether anything conflicts.
• Nominate one clinician to hold the overall picture.
• Usually that is your general practitioner.

Asking whether anything can stop

• Some items were started for a reason that no longer applies.
• Some are treating side effects of others.
• Some have accumulated over years without review.
• Ask for a structured review of the whole list.
• Stopping must be planned, not improvised.

Never stop abruptly on your own

• Some medicines must be reduced gradually.
• Abrupt stopping can cause serious problems.
• If you want to stop something, say so and ask how.
• A planned reduction is safe; a sudden one may not be.

Swallowing difficulties

• Say so rather than crushing tablets yourself.
• Some tablets must not be crushed or opened.
• Crushing a modified-release tablet can release everything at once.
• Ask whether a liquid or dispersible form exists.
• Ask your pharmacist which items can be safely altered.

Recognising side effects

• Note when anything new began.
• Compare it against when medicines changed.
• New symptoms in older people are often medicine-related.
• Dizziness, confusion and falls deserve a medicine review.
• Raise it rather than accepting it as ageing.

Costs across a long list

• Ask the pharmacist to review the list for cheaper equivalents.
• Ask whether any items are available more cheaply as a combination.
• Ask whether longer prescriptions reduce dispensing charges.
• Ask whether any assistance scheme applies.
• Say plainly if the total is unaffordable, rather than quietly skipping items.

If someone helps you

• Make sure they have a copy of the list.
• Make sure they know the missed dose rules.
• Make sure they know who to call.
• Agree who orders repeats.
• Write it down rather than relying on memory.

Keeping the list current

• Update it the same day anything changes.
• Date every version.
• Discard old copies so nobody reads the wrong one.
• Share the current version with anyone who helps you.
• An out-of-date list is more dangerous than none.

Travelling

• Carry medicines in hand luggage.
• Carry more than the trip length.
• Carry a letter listing what you take.
• Ask about time zone adjustments.
• Check legality at your destination.

Inhalers, drops and patches

• Technique matters as much as the medicine.
• Ask to be shown and to demonstrate it back.
• Poor inhaler technique is extremely common and easily corrected.
• Ask how to tell when a device is empty.
• Ask where patches should be applied and rotated.
• Ask how long drops remain usable after opening.

Storage and disposal

• Ask what needs refrigeration.
• Keep everything away from heat, damp and children.
• Check expiry dates when you refill the organiser.
• Return unused medicines to a pharmacy.
• Do not keep old medicines in case they are useful later.

The point to remember

Three things:

1. Keep one complete, accurate list including supplements, and carry it everywhere.
2. Compare discharge medicines line by line with your previous list.
3. Ask yearly whether anything on the list can safely stop.

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