Suppapitiporn 2005.

Methods	Randomised trial
Participants	360 diabetic patients (intervention 180; control 180) King Chulalongkorn Hospital Bangkok, Thailand Year of study: January to Dcember 2004.
Interventions	All participants received diabetic drug counselling by a pharmacist; 1) counselling alone; 2) diabetic booklet; 3) specialised medication containers; 4) diabetes education, booklet, medication containers. Interventions were received at the initial visit and at 6‐month assessment follow‐ups.
Outcomes	HbA1c at 6 months
Notes	Funding source: Not specified Conflict of interest: Not stated
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: "a simple randomisation was performed".
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of participants and personnel (performance bias) All Outcomes/Outcome 1	Unclear risk	Not stated
Blinding of outcome assessment (detection bias) All Outcomes/Outcome 1	Low risk	Not stated, but medical records were used to get outcomes so unlikely to be biased.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Actual completion rate unknown.
Selective reporting (reporting bias)	High risk	Quote: "patient records used to obtain patients response to intervention".
Other bias	Low risk	None identified