Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Overall symptoms of tinnitus
RCT	30 people In review	Proportion of people with subjective improvement of tinnitus (self-reported; severity measured on 5-point scale) 10 weeks 1/10 (10%) with cinnarizine (25 mg three times/day for 10 weeks) 1/20 (5%) with placebo	Reported as not significant P value not reported The RCT did not specify the follow-up period, and might have lacked power to detect a clinically important effect		Not significant