Amlodipine is a medication used to treat high blood pressure and coronary artery disease. While not typically recommended in heart failure, amlodipine may be used if other medications are not sufficient for treating high blood pressure or heart-related chest pain.

Ajmaline is an alkaloid that is classified as a 1-A antiarrhythmic agent. It is often used to induce arrhythmic contraction in patients suspected of having Brugada syndrome.

Carvedilol is a medication used to treat high blood pressure, congestive heart failure and left ventricular dysfunction in people who are otherwise stable. For high blood pressure, it is generally a second-line treatment.

Digoxin is a medication used to treat various heart conditions. Most frequently it is used for atrial fibrillation, atrial flutter and heart failure.