Appendix 1.

Databases and search terms applied.

Database	Search terms applied
CINAHL	AGED OR aged, 65 and over OR middle aged OR elderly AND Primary care OR primary health care OR community AND Pharmacist* AND Prescription OR prescribing
ClinicalTrials.gov	(pharmacist or pharmacists) AND (prescribing OR prescription) AND (inappropriate OR strategy OR strategies OR improving OR improve OR optimise OR optimize) AND (primary care OR primary health care OR community OR outpatient care) | Adult, Senior
Cochrane Database of Systematic Reviews	‘aged’ or ‘aged, over 65’ or ‘middle aged’ or ‘elderly’ AND prescribing or prescription or ‘inappropriate prescribing’ AND ‘primary care’ or ‘primary health care’ or ‘outpatient care’ or ‘community’ AND pharmacist* or ‘pharmaceutical care’ or pharmacist* intervention
Embase	‘aged’ OR ‘aged’ OR ‘middle aged’ OR ‘middle aged’ OR ‘aged, over 65’ OR ‘elderly’ OR ‘elderly’ AND ‘primary care’ OR ‘primary health care’ OR ‘outpatient care’ AND prescribing OR prescription* AND pharmacist* OR ‘pharmaceutical care’
MEDLINE (through Ovid)	(prescribing or prescription) AND (aged or middle aged or elderly) AND (primary care or primary health care or elderly care or outpatient care) AND (pharmacist* or pharmaceutical care)
metaRegister of Controlled Trials (mRCT)	(pharmacist or pharmacists) AND (prescribing OR prescription) AND (inappropriate OR improving OR improve OR optimise OR optimize) AND (primary care OR primary health care OR outpatient care OR community OR general practice)
ProQuest Dissertations & Theses	(aged or elderly OR ‘middle aged’) AND (‘primary care’ or ‘primary health care’ OR community or ‘outpatient care’) AND (prescribing or ‘drug prescribing’ OR prescription* or ‘drug prescription*’) AND (pharmacist* or clinical pharmacist* OR ‘pharmaceutical care’ OR ‘pharmacy intervention’ or ‘clinical intervention’ OR ‘pharmacist intervention’ or ‘clinical pharmacist intervention’)
PubMed	(((‘primary care’ or ‘primary health care’ or ‘outpatient care’))) AND ((prescribing or prescription*))) AND ((‘aged’ or ‘middle aged’ or elderly))) AND ((pharmacist* or ‘pharmaceutical care’))
ScienceDirect	aged OR ‘middle aged’ OR ‘elderly’ AND ‘primary care’ OR ‘primary health care’ OR community OR ‘outpatient care’ AND prescribing OR prescription* OR ‘appropriate prescribing’ OR ‘inappropriate prescribing’ OR ‘potentially inappropriate prescribing’ AND ‘clinical pharmacist’ OR pharmacist* OR ‘pharmaceutical care’ OR ‘pharmacy intervention’ or ‘clinical intervention’ OR ‘pharmacist intervention’ or ‘clinical pharmacist intervention’ (All Sources (Medicine and Dentistry, Nursing and Health Professions, Pharmacology, Toxicology and Pharmaceutical Science)).
Trip	‘(title: aged OR middle aged OR elderly AND primary care OR primary health care OR outpatient care) (title: pharmacist* OR pharmaceutical care) (title: usual care OR control) (prescribing OR prescription)’, by quality
University of York Centre for Reviews and Dissemination	(aged) OR (‘middle aged’) OR (elderly) AND (prescribing or prescription* or ‘drug prescribing’ or ‘drug prescription*’) AND (‘primary care’) OR (‘primary health care’) OR (‘outpatient care’) AND (pharmacist* or ‘clinical pharmacist*’ or ‘pharmaceutical care’ OR ‘pharmacist* intervention’ OR ‘clinical pharmacist* intervention’)
ISI Web of Science	(‘aged’ or ‘middle aged’ or elderly) Timespan=All years, Search language=Auto AND (‘primary care’ or ‘primary health care’ or ‘outpatient care’) Timespan=All years, Search language=Auto AND (prescribing or prescription*) Timespan=All years, Search language=Auto AND (pharmacist* or ‘pharmaceutical care’) Timespan=All years, Search language=Auto