digoxin
METHODS: Fifty ambulatory patients, 18 to 75 years of age, with mild to        moderate heart failure, left ventricular ejection fraction </=35%, taking stable        doses of angiotensin-converting enzyme inhibitor, diuretics, and optionally       digoxin were enrolled in a randomized, double-blind, placebo-controlled       dose-escalation study of ecadotril 50 to 400 mg twice daily versus conventional       therapy alone.
METHODS: Fifty ambulatory patients, 18 to 75 years of age, with mild to        moderate heart failure, left ventricular ejection fraction </=35%, taking stable        doses of angiotensin-converting enzyme inhibitor, diuretics, and optionally        @SUBJECT$  were enrolled in a randomized, double-blind, placebo-controlled       dose-escalation study of ecadotril 50 to 400 mg twice daily  @PREDICAT$  conventional        @OBJECT$  alone.