Makes the heart beat more slowly, which assists the heart to beat more efficiently. It also helps control the rate and rhythm of your heart. Digoxin may build up in your body causing the amount of the drug in your blood to be higher than normal, you will need periodic lab tests to check your digoxin level.

Names of medicines in this group:

Lanoxin
Digoxin
Lanoxicaps

Side effects that may indicate excessive digoxin in the blood include loss of appetite, nausea and vomiting, diarrhea, abdominal pain and bloating, frequent headaches, changes in vision, skipped heartbeats, pounding heart, or very slow heart rate.