Digoxin (Lanoxin®) makes your heart pump more efficiently. It can help control an irregular heart rhythm, help you breathe easier and feel better.

If you take antacids that contain aluminum, the effect of digoxin may be decreased. Never double up on doses of digoxin. Call your health care provider if you miss two or more doses.

Side effects

Too much digoxin can cause serious problems, such as a change in your heart rate or a drop in blood pressure. You may need a blood test once in a while to check your digoxin level.

When to call your health care provider

Call your health care provider if you have any of the following while taking digoxin:

  • loss of appetite
  • nausea, vomiting, diarrhea or stomach pain
  • blurred vision
  • yellow, green or white vision
  • slow or irregular heartbeat
  • drowsiness, confusion or depression
  • headache or fainting
  • unusual tiredness or weakness
  • skin rash or hives

Source: Allina Health's Patient Education Department, Heart Failure, fifth edition, 1-931876-31-2
First Published: 10/04/2002
Last Reviewed: 12/10/2015