In plain English
Medication safety is one of the practical responsibilities that shifts from the person with dementia to the family. This page covers the systems, prompts and reviews that protect both you and the person you care for.
When medication management becomes an issue
Most adults manage their own medication for most of life. As Mild Cognitive Impairment progresses to dementia, three problems emerge:
- Forgetting whether a dose has been taken;
- Difficulty using the packaging or recognising tablets;
- Confusion about which medicine is for what.
By the time complex IADLs are affected (typically mild to moderate dementia), some level of support is usually needed. The earliest signs are subtle: doses left in the packet, requests for early repeat prescriptions, doubled-up doses, or new side effects from doses missed and then doubled.
Step 1: the medication review
Start with a comprehensive medication review by the GP or community pharmacist. This achieves three things:
- Confirms the indication for every medicine on the list (some accumulate over years and are no longer needed);
- Identifies anticholinergic burden (the cumulative effect of medicines that worsen cognition), and offers safer alternatives where possible;
- Simplifies the regimen: once-daily formulations, fewer separate medicines, blister packs.
Medication review is recommended by NICE at diagnosis and at least annually thereafter.
Step 2: the dispensing aid
Most UK community pharmacies offer one or more dispensing aids:
Dosette box (Monitored Dosage System, or MDS)
A weekly tray with compartments for each time of day. The pharmacy fills and seals the tray, with each blister showing the day and time. The Dosette box is the most widely used aid in the UK. Most pharmacies provide it free of charge for people who need it on health grounds (covered under the Equality Act 2010 reasonable adjustment provisions).
Original packaging with a daily prompt
If the regimen is simple (one or two tablets at a single time of day), the original packaging plus a phone reminder may be enough.
Automatic pill dispenser
Battery-powered dispensers (Pivotell, MedHelm) alarm at set times and dispense only that dose. They prevent doubling-up. Useful where the person lives alone and forgetfulness is the main issue.
Patch formulations
For some medicines (Rivastigmine, hormone replacement, some pain relief), patches replace daily tablets entirely.
Step 3: prompts and routine
Even with a Dosette box, a prompt is often needed. The most reliable prompt is a daily routine that pairs medication with another fixed event:
- Morning tablet with the first cup of tea;
- Evening tablet with the news on television;
- Bedtime tablet next to the toothbrush.
A laminated card on the kitchen worktop ("Have you taken your morning tablets?") works well alongside.
Step 4: who is responsible
In moderate dementia, a family carer or a paid carer usually takes over medication administration. Be clear about who is responsible at which times of day. Three patterns are common:
- Carer administers, supervises swallowing. Reduces all risk; appropriate in moderate to severe dementia.
- Carer prepares, person self-administers. A middle option, preserving autonomy while reducing error.
- Carer prompts only. Appropriate in mild dementia; the person continues to self-administer with a reminder.
The right pattern shifts over time. Reassess every six months.
What to do if a dose is missed
Different medicines have different rules. As general principles:
- Donepezil and other Cholinesterase Inhibitors: if missed by a few hours, take when remembered. If close to the next dose, skip the missed dose and continue. Do not double up.
- Memantine: as above. Do not double up.
- Blood pressure medicines: if missed in the morning, take when remembered if within a few hours. Otherwise skip.
- Anticoagulants (Apixaban, Warfarin): consult specific guidance with each medicine. Apixaban: take a missed dose unless less than 6 hours remain until the next dose. Warfarin: more complex; follow your anticoagulation service's instructions.
- Insulin: seek advice; rules differ by regimen.
When in doubt, ring your GP, the local pharmacy, or NHS 111. Do not improvise with multiple-dose corrections.
Common interactions and watch-outs
Anticholinergic burden
Many older adults are on multiple medicines with mild anticholinergic effects. Cumulatively these worsen cognition. Common culprits include some bladder medicines (Oxybutynin), some antidepressants (Amitriptyline, Paroxetine), antihistamines (Promethazine, Diphenhydramine), and some Parkinson's medicines. Review with the GP or pharmacist; alternatives often exist.
Benzodiazepines and Z-drugs
Diazepam, Lorazepam, Temazepam, Zopiclone and Zolpidem worsen confusion, falls and cognition in dementia. Routine use is not recommended. If currently prescribed, ask about a planned reduction.
Opioid pain relief
Can cause confusion and constipation. Used carefully and at the lowest effective dose. Codeine and Tramadol have higher risks in older adults than Paracetamol.
Anti-emetic medicines
Some (Prochlorperazine, Metoclopramide) can cause Parkinsonian side effects in older adults; alternatives exist.
Storing medicines safely
- Keep medicines in a locked cupboard if there is any risk of unintended access;
- Store in a cool, dry place, away from bathrooms and direct sunlight;
- Return out-of-date medicines to the pharmacy for safe disposal;
- Keep a current medication list with you and on the fridge, including doses, indications and the prescribing GP.
Travelling and going on holiday
Plan ahead:
- Order a prescription with extra time built in;
- Carry medicines in hand luggage with a copy of the prescription;
- Use a travel pill organiser in addition to the Dosette box;
- Check time-zone considerations for time-critical medicines;
- Take travel insurance that covers cognitive conditions.
When to ask for help
Contact the GP or pharmacist if:
- New side effects emerge after a recent medication change;
- Doses are being missed despite a Dosette box;
- Behaviour has changed in association with a new medicine;
- You are unsure whether to keep a long-standing medicine going.
The Dementia Service can provide a structured private medication review where the routine GP review has not resolved concerns, with the structured letter shared with your GP.
Frequently asked questions
Can my pharmacy provide a Dosette box?
Most UK community pharmacies do, free of charge for people who need it on health grounds. Ask at your local pharmacy or via your GP.
What if my parent is refusing to take their medicines?
Identify the cause: side effects, swallowing difficulty, mistrust, or simply forgetting why. Ask the GP or pharmacist to review formulations (patches, liquids, smaller tablets). Avoid disguising medicines in food without explicit professional guidance; this is covert administration and has specific legal requirements.
Should I be worried about anticholinergic medicines?
Yes if several are prescribed together. Ask the GP for an anticholinergic burden review; alternatives often exist.
Is it safe to double up if a dose was missed?
Usually no. As a general rule, take the missed dose when remembered if within a few hours of the scheduled time, otherwise skip and continue normally. Anticoagulants and insulin have specific rules.
Do I need legal authority to manage medicines?
Within the family, day-to-day medicine administration usually does not require formal authority. For consent decisions (changing or stopping treatment) when capacity is impaired, a Lasting Power of Attorney for health and welfare or a best-interests decision is needed.
References
- NICE NG97: Dementia, assessment, management and support. Section 1.2 and 1.5.
- Royal Pharmaceutical Society. Improving medicines use for older people.
- British National Formulary. Anticholinergic burden and older adults.
- Care Quality Commission. Medicines administration in care services.