Studies in healthy volunteers found no significant interaction when candesartan was taken together with digoxin. So the leaflet does not report any important problem from using the two together. These studies were done in healthy people, so if you have a heart condition or take other medicines, still tell your doctor or pharmacist that you are using both.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.