Digoxin is a medication commonly used to treat certain heart conditions, particularly heart failure and atrial fibrillation. It works by increasing the strength of heart contractions and regulating heart rhythm, which helps improve blood flow and reduce symptoms associated with these conditions. This drug is derived from the leaves of the foxglove plant and has been used for centuries in traditional medicine. While effective, digoxin requires careful monitoring due to its narrow therapeutic range, meaning that the difference between a therapeutic dose and a toxic dose is small. Regular check-ups and blood tests are essential for safe use.