Table 1 Participant Inclusion and Exclusion Criteria

Participant Inclusion Criteria

 1. Receiving medication (including but not limited to medicines in British National Formulary [BNF 68] sections 4.1/4.2/4.3/4.11 to treat behaviour that challenges.

 2. Resident within a long-term care facility.

 3. Registered with a West Midlands GP (who has also agreed to participate).

 4. Dementia confirmed (dementia register, documentation of relevant read codes, confirmation of diagnosis via communication from old age psychiatry, memory clinic or clinical psychologist).

 5. Patient, or personal consultee, willing to provide consent/assent.

 6. A proxy informant (key worker or staff member with close working relationship) who can clearly communicate in English available.

Participant Exclusion Criteria

 1. Patient, or personal consultee unable or unwilling to provide consent or lacks necessary English-language skills.

 2. On palliative care register, or has pathology requiring complex specialist medication.

 3. Risk of harm in line with Alzheimer's Society guidance (guidelines published in 2011, currently being updated and therefore not available).

 4. Severe Mental Illness (e.g. schizophrenia) where psychotropic treatment should be continued.