Aprindine HCl is a Class 1b antiarrhythmic agent used to manage ventricular and supraventricular arrhythmias. In one study, it delayed atrialfibrillation more than digoxin did. It has shown effectiveness when given orally.
KCa2 (small conductance Ca2+-activated potassium) channel negative allosteric modulator (IC50 = 1.1 μM). Increases the EC50 of Ca2+ on KCa2.3 channels by ~3-fold. Prolongs atrial effective refractory period (AERP) in rats. Reduces atrialfibrillation (AF) duration and prolongs atrial refractoriness without affecting ventricular refractory period in an animal AF model. Diness et al (2017) Termination of vernakalant-resistant atrialfibrillation by inhibition of small-conductance Ca2+-activated K+ channels in pigs. Circ.Arrhythm.Electrophysiol. 10 e005125 PMID:29018164 |Simó-Vicens et al (2017) A new negative allosteric modulator, AP14145, for the study of small conductance calcium-activated potassium (KCa2) channels. Br.J.Pharmacol. 174 4396 PMID:28925012
Budiodarone(ATI-2042)is a chemical analog of an antiarrhythmic drug and amiodarone. Budedalone is promising as an antiarrhythmic agent for the prevention of atrialfibrillation.