Box 1.

GP interview topic guide

Usual practice (question prompts) Before we get into the specifics, I’m interested in understanding how repeat medications are reviewed in your practice?’ (How often? Within/outside of consultations? Patient involvement; purpose; and barriers/facilitators) Can you tell me about your experience of reviewing medications for patients with polypharmacy? (Different to other medication reviews?) Do pharmacists play a role in medication reviews in your practice? (CCG pharmacist or practice pharmacist?) Are any other non-GP staff involved in medication reviews in your practice?

Usual practice case patients Can you think of any non-3D trial patients who are prescribed lots of medications who you could look up on EMIS? Could you talk through how you might review their medications? (Is that typical?)

3D trial I’d like to ask you to focus more on the 3D trial now. How have you found reviewing patient’s medications during the 3D consultations? (Purpose of the reviews; pharmacist recommendations; patient involvement; and types of changes made, examples)

3D trial case patients, 2–3 for each interview Can you have a read over the record for this patient and talk me through how you might have come to the decisions about their medications? (changes made; pharmacist recommendations — looked at, useful, acted on, concerns; patient involvement; typical of other reviews? Same/different to usual practice?)

Any other issues Any other issues you would like to raise?

CCG = clinical commissioning group.