thus , inhibition of the fast inward sodium channel with agents such as prenylamine and lignocaine , ( when begun before coronary-artery occlusion ) offers maximal protection against reperfusion-induced ventricular fibrillation , while beta-blockade with timolol and oxprenolol and slow calcium channel inhibition with nifedipine do not offer any significant protection .
C0023660
lignocaine
C0042510
ventricular fibrillation