How the interaction occurs:
Spironolactone may decrease the ability of your kidneys to remove digoxin from your body. It may also interfere with some laboratory tests that measure the amount of digoxin in your blood.
What might happen:
The effects of your digoxin may increase and cause a slow or irregular heartbeat.
What you should do about this interaction:
If you experience a slow or irregular heartbeat, contact your doctor. The dose of your medicine may need adjusting. You may be more likely to experience effects from this interaction if you have liver problems or are elderly. If your doctor orders a blood test to check the amount of digoxin in your blood, remind your doctor and the laboratory that you are taking spironolactone.Your healthcare professionals (e.g. doctor or pharmacist) may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
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