when compared with cimetidine , propafenone significantly increased the pr interval from 161 +/- 5 msec to 192 +/- 6 msec ( p less than .01 ) and the qrs duration from 89 +/- 3 msec to 98 +/- 4 msec ( p less than .01 ) .
C0008783
cimetidine
C0033429
propafenone