Class IA antiarrhythmic: inhibits depolarizing sodium channels in cardiac muscle and purkinje fibers
Antimalarial action: intraerythrocytic schizonticide to p. vivax and p. malariae, acts against asexual erythrocytic phase of p. falciparum
Quinidine
Lidocaine
Ibutilide
Amiodarone
Flecainide
Procainamide
Propafenone
Sotalol