small doses of the drugs were administered for 1 week ( 200 mg of quinidine every 6 hours or 300 mg of propafenone every 12 hours ) and large doses were administered for another week ( 400 mg of quinidine every 6 hours or 300 mg of propafenone every 8 hours ) .
C0034414
quinidine
C0033429
propafenone