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Updated: Jul 8, 2026

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Published on: February 5, 2021
Ivabradine: a selective If current inhibitor in the treatment of stable angina
George Andrikopoulos1, Chryssanthi Dasopoulou, Dimitris Sakellariou
1First Department of Cardiology, Evagelismos General Hospital of Athens, Athens, Greece. gkandrik@otenet.gr
Insights
Ivabradine offers an effective and safe way to manage heart rate for myocardial ischemia and chronic stable angina. This If current inhibitor provides anti-anginal benefits comparable to other drugs but with better tolerability.
Area of Science:
- Cardiovascular Therapeutics
- Pharmacology
- Electrophysiology
Background:
- Heart rate reduction is crucial for managing myocardial ischemia and chronic stable angina.
- Current rate-slowing drugs have limited use due to poor tolerability.
- Ivabradine selectively inhibits sinoatrial node If currents, controlling heart rate.
Purpose of the Study:
- To evaluate the efficacy and tolerability of ivabradine in cardiovascular therapeutics.
- To compare ivabradine's anti-anginal and anti-ischemic effects with existing treatments.
- To explore the potential of ivabradine beyond stable angina management.
Main Methods:
- Ivabradine, a selective If current inhibitor (S 16257), was studied.
- Clinical studies assessed its anti-anginal and anti-ischemic effects.
- Adverse reaction profiles were compared to other If inhibitors.
Main Results:
- Ivabradine demonstrated anti-anginal and anti-ischemic effects equivalent to atenolol and amlodipine.
- It exhibits a more favorable adverse reaction profile than other If inhibitors.
- Clinical development for stable angina is complete, proving its efficacy.
Conclusions:
- Ivabradine is a promising and safe option for heart rate management in cardiovascular therapeutics.
- Its efficacy in stable angina suggests potential for broader applications.
- Ivabradine represents a significant advancement in treating myocardial ischemia and related conditions.
Abstract:
The role of heart rate reduction in the management of myocardial ischemia and chronic stable angina is pivotal. However, broad use and appropriate dosing of commonly used rate-slowing drugs is limited by their poor tolerability. Ivabradine is a selective inhibitor of the If currents of the sinoatrial node cells. If currents activity determines the slope of the depolarization curve towards the threshold level controlling heart rate in patients with sinus rhythm. Ivabradine, a compound of the benzocyclobutane (S 16257), exhibits a unique specificity for the If current and has a more favorable profile of adverse reactions compared to other If inhibitors. Accordingly, ivabradine has been used in the treatment of stable angina, where it presented anti-anginal and anti-ischemic effects equivalent to the effects of atenolol and amlodipine. Clinical studies proved the efficacy of ivabradine in patients with stable angina, while clinical data are awaited to verify its probable value in the treatment of atrial tachyarrhythmias and tachycardia due to ventricular dysfunction. Thus, the clinical value of ivabradine, which has completed clinical development for stable angina, is expected to exceed its role in the treatment of myocardial ischemia. In this context, ivabradine, promising efficacious and safe pharmacological management of heart rate, is a huge step in cardiovascular therapeutics.
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