Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Adverse effects
RCT	50 people with subjective tinnitus	Proportion of people with an adverse effect 3 months 12% with acamprosate 333 mg three times daily 20% with placebo Absolute numbers not reported	P = 0.35 People who dropped out of the RCT were not included in the data analysis, which would have affected the results		Not significant