What is the therapeutic range for Lanoxin (digoxin)?

The therapeutic range for Lanoxin (digoxin) is recognized as being between 0.5 and 2.0 ng/mL. This range is critical for ensuring the medication's effectiveness while minimizing the risk of toxicity. Digoxin works by helping to improve the efficiency and contraction of the heart muscle, which is especially important in conditions like congestive heart failure and atrial fibrillation.

A therapeutic level below 0.5 ng/mL may not provide sufficient therapeutic effects, while levels above 2.0 ng/mL can lead to signs of toxicity, such as nausea, vomiting, visual disturbances, and arrhythmias. Maintaining digoxin levels within this range is essential for safe and effective patient management.