En analyse af poolede placebo- kontrollerede kliniske forsøg, omfattende 1923 patienter i behandling med Sifrol og 1354 patienter i placebo behandling viste, at rapportering af bivirkninger var hyppigt forekommende i begge grupper.
Based on the analysis of pooled placebo-controlled trials, comprising a total of 1923 patients on SIFROL and 1354 patients on placebo, adverse drug reactions were frequently reported for both groups.