the order of potencies for inducing a negative chronotropic effect in dog atria was verapamil greater than propranolol much greater than hv-525 greater than or equal to lidocaine greater than or equal to quinidine greater than phenytoin greater than disopyramide greater than procainamide , and that for inducing a negative inotropic effect was verapamil greater than or equal to propranolol greater than hv-525 greater than lidocaine greater than phenytoin greater than disopyramide greater than procainamide greater than or equal to quinidine .
C1372752
negative chronotropic
C0042523
verapamil