68 patients with rhythmical disorders unresponsive to treatment with one or several antiarrhythmics ( quinidine derivatives 52 patients , amiodarone 28 patients , beta-blockers 24 patients ) were treated by mouth with propafenone , with a mean postponement of 5.6 +/- 8.5 months ( 1 day to 33 months ) .
C0034414
quinidine
C0033429
propafenone