Serious. These medicines may interact and cause very harmful effects. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
The cause of the interaction is not known. Propafenone or flecainide may increase the effects of your digoxin.
What might happen:
The blood levels of your digoxin may increase and cause nausea, vomiting, or a slow or irregular heartbeat.
What you should do about this interaction:
If you experience nausea, vomiting, or a slow or irregular heartbeat, contact your healthcare professional (e.g. doctor or pharmacist.) You may need to have your digoxin level checked and your doctor may want to adjust the dose of your medicine.Your healthcare professionals may already be aware of this drug 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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