What is digitalis primarily used to treat?

Digitalis is primarily employed in the management of congestive heart failure (CHF). This medication, derived from the foxglove plant, strengthens cardiac contractions and helps to regulate heart rhythm, making it effective for individuals with weakening heart muscle function. In cases of CHF, the heart cannot pump blood efficiently, leading to symptoms like fatigue, shortness of breath, and fluid retention. Digitalis helps alleviate these symptoms by improving the heart's ability to pump and enhancing the body's circulation, ultimately providing relief to patients suffering from this condition.

While other treatments are indicated for conditions such as high blood pressure, diabetes, or infections, digitalis specifically addresses the challenges posed by heart failure, making it the best choice in this context.