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pathology Benefit (demonstrated or suggested) and harm      
heart failure

All results are NS for efficacy

inferior to placebo in terms of Total mortality in PROMISE, 1991

inferior to placebo in terms of Sudden death in PROMISE, 1991

inferior to placebo in terms of Cardiac death in PROMISE, 1991

inferior to placebo in terms of Vertigo in PROMISE, 1991

meta-analysis