(Lanoxin® and Cardoxin® are other names for this medication.)

Use: In animals with congestive heart failure, Digoxin is used to help the heart beat more strongly and move blood through the body better. It is also used to treat certain types of heart rhythm disturbances.

Side Effects: Most side effects of digoxin occur when there is too much drug in the bloodstream. These effects can range from mild gastrointestinal effects (lack of appetite, vomiting, diarrhea), to lethargy (lacking energy) or behavior changes to serious heart rhythm abnormalities.

Precautions: Cats may be more sensitive to the side effects of digoxin than are dogs.

Directions: Dogs usually receive this drug orally twice daily.
Cats usually receive this drug orally twice daily to once every other day.

Remember: Digoxin products should be stored at room temperature in a tight, light resistant, childproof container away from all children and other household pets.

If you miss a dose of this medication you should give it as soon as you remember it, but if it is within a few hours of the regularly scheduled dose, wait and give it at the regular time. Do not double a dose as this can be toxic to your pet.