Table III.

Serum digoxin concentrations of the ILDD and CLDD groups.

Detection time	ILDD (ng/ml)	CLDD (ng/ml)
Digoxin use 15 days	0.55±0.18	0.73±0.17
Digoxin use 30 days	0.52±0.13	0.71±0.15
Digoxin use 60 days	0.57±0.11	0.69±0.18

ILDD, intermittent low doses of digoxin (patients were instructed to take 125 μg digoxin per day orally for three days and then 62.5 μg every other day); CLDD, continuous low doses of digoxin (patients were instructed to take 125 μg digoxin per day orally for three days and then 62.5 μg every day).