Class I indication for ivabradine therapy:
- chronic systolic HF + NYHA Class II - IV symptoms + stable angina pectoris refractory to treatment with one antianginal drug.

Class IIa indication for ivabradine therapy:
- chronic systolic HF + NYHA Class II - IV symptoms + stable angina pectoris + sinus  rhythm + poor tolerance of B-blockers.

Class IIb indication for ivabradine therapy:
- chronic systolic HF + NYHA Class II - IV symptoms + stable angina pectoris refractory to treatment with two antianginal drugs.