“…If it is presumed that H. pylori infection has a role in the aetiology of functional dyspepsia, 4–6 we would expect a treatment related to other causes of this disorder to be less effective in H. pylori ‐positive patients if the bacterium is not eradicated simultaneously. In our trial, however, H. pylori ‐positive patients given PCC showed a substantially better treatment response, and there were no interpretable differences in treatment outcome between the two sub‐groups given placebo.…”