continuous-wave doppler measurements of ascending aortic blood flow velocity were obtained in 16 patients while not receiving antiarrhythmic drugs on 2 consecutive days to assess day-to-day variability , as well as while receiving maximally tolerated oral doses of mexiletine ( 11 patients ) and propafenone ( 9 patients ) .
C0003195
antiarrhythmic drugs
C0033429
propafenone