It acts to stop arrhythmias of the heart through a frequency - dependent block of cardiac sodium channels .
Prajmaline is a semi-synthetic propyl derivative of ajmaline , with a higher bioavailability than its predecessor .
Prajmaline acts to stop arrhythmias of the heart through a frequency - dependent block of cardiac sodium channels .
Prajmaline is a semi-synthetic propyl derivative of ajmaline , with a higher bioavailability than its predecessor .