Digitalis drugs are a class of medications used in some heart conditions. In the US, digoxin is the main digitalis drug. When the amount of digoxin in the blood becomes too high, toxic effects occur.

What is going on in the body?

Digoxin is an effective medication that makes the heart pump better and helps control irregular heartbeats. But, digoxin is also a powerful medication that can cause death if it is taken inappropriately. The greater the amount of digoxin, the greater the risk of toxic effects.

What are the causes and risks of the condition?

Many medications interfere with the body's ability to get rid of digoxin. This may increase the level of digoxin in the blood. These include antibiotics, heart medications, and water pills, or diuretics. Salt imbalances in the body can also increase the risk of digoxin toxicity.