in 38 patients on a constant glycoside maintenance dose , the addition of quinidine to digoxin therapy resulted in a mean 2.5-fold increase ( from 0.98 +/- 0.37 to 2.47 +/- 0.71 ng per milliliter , mean +/- 1 s.d . )
C0007158
glycoside
C0012265
digoxin