Understanding dementia and why it matters in pharmacy

Dementia is a syndrome of progressive decline in brain function. It is not a normal part of ageing and does not only affect memory. It can impair language, judgement, understanding, behaviour, mood, movement and the ability to carry out everyday tasks.

Not every change in memory or thinking is dementia. Depression, anxiety, delirium, thyroid problems, sensory loss and some medicines can cause confusion or cognitive change. Diagnosis is a clinical process, but pharmacy teams are often well placed to notice changes and raise concerns.

Why dementia matters in pharmacy practice

• People may still use pharmacy regularly: for repeat prescriptions, over-the-counter advice, vaccinations, home delivery, monitored dose systems and structured medicines support.
• Needs can change over time: someone may manage independently at first but later require help with routines, decision-making or communication.
• Pharmacy contact can reveal practical problems: confusion about what medicines are for, missed collections, duplicate requests, unsafe self-medication or carer strain.
• Early support matters: timely assessment and appropriate help allow people and families to plan and access services sooner.

Different types can present differently

Pharmacy teams do not need to diagnose dementia subtypes, but knowing typical presentations helps interpret what is observed.

• Alzheimer's disease: commonly causes memory and language difficulties, especially early on.
• Vascular dementia: may reduce processing speed, planning and concentration, sometimes with stepwise decline.
• Dementia with Lewy bodies: can involve visual hallucinations, fluctuating alertness and Parkinsonian features.
• Frontotemporal dementia: often presents with changes in behaviour, personality or language and can affect people under 65.
• Mixed dementia: means more than one pathological process contributes to the cognitive decline.

These differences explain why some people mainly appear forgetful while others present with distress, language problems, hallucinations or marked behavioural change.

Dementia is not a normal part of ageing, and it does not look the same in everyone. Pharmacy teams should remain person-centred, avoid stereotypes, and remember that not all confusion indicates dementia.