Combination (I) comprises a selective and specific sinusal I f(mixed sodium ion-potassium ion inward current) current inhibitor (A) and an angiotensin converting enzyme inhibitor (B). An independent claim is included for pharmaceutical compositions comprising: ivabradine, in the form of hydrochloride or its hydrate or crystalline forms, and perindopril, in the form of salt of tert-butylamine or arginine or their hydrates or crystalline forms, alone or in combination with one or more excipient. ACTIVITY : Cardiant； Cardiovascular-Gen.； Vasotropic； Antianginal； Antiarrhythmic. MECHANISM OF ACTION : Sinusal I fcurrent inhibitor； Angiotensin converting enzyme inhibitor.
