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Heart Failure Online Manual

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Digoxin (Lanoxin®) makes your heart pump more efficiently. Digoxin can also help control an irregular heart rhythm. It may 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.

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Treat indigestion, gas, heartburn, peptic ulcers, and other conditions.

Learn more about antacids here.

Side effects


If you have any of the side effects listed here, call your health care provider.

Too much digoxin can cause serious problems. For this reason you may occasionally have a blood test 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, third edition, ISBN 1-931876-20-7

First published: 10/04/2002
Last updated: 07/19/2008

Reviewed by: Allina Health's Patient Education Department experts