0 a drug obtained from the foxglove plant (= a flowering plant) that is used to treat heart conditions:
Digitalis is a drug made from dried leaves of the purple foxglove plant.
Digitalis has a narrow margin for error, so cardiologists may try to use other treatments for heart-rhythm problems.
They put me on digitalis for about a year. I had to take two drops a day.
Atrial fibrillation can be treated with medication such as digitalis.