McLatchie 1989.

Methods	R, DB, PC, parallel groups Gel applied to injured site 3 times daily for 7 days Assessment at baseline 4, 7 days at clinic, daily patient diary
Participants	Acute soft tissue injury (< 48 hours) N = 231 M 143, F 88 Mean age 33 years Baseline pain moderate to severe
Interventions	Felbinac gel 3%, 3 x 3 cm daily, n = 118 Placebo gel, 3 x 3 cm daily, n = 113 Rescue medication: paracetamol
Outcomes	Patient diary: mean change Adverse events Withdrawals
Notes	Oxford Quality Score: R1, DB2, W1. Total = 4/5
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding (performance bias and detection bias) All outcomes	Low risk	"tubes identical in all aspects"
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	No usable efficacy data
Size	Unclear risk	50 to 200 participants per treatment arm