Lanoxin (digoxin) is primarily used to treat which condition?

Lanoxin, or digoxin, is primarily used to treat congestive heart failure (CHF) because of its ability to improve the strength and efficiency of heart contractions. It increases cardiac output and helps alleviate the symptoms of heart failure such as fatigue, shortness of breath, and fluid retention. By enhancing the heart's pumping ability, digoxin can help manage the symptoms associated with CHF effectively.

While digoxin is also used in some cases of atrial fibrillation to help control heart rate, its main indication remains with heart failure. The other conditions listed, such as hypertension and various arrhythmias, are managed with different classes of medications that target those specific issues more directly. Therefore, the primary role of digoxin in the management of CHF is a cornerstone of its therapeutic use.