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. When these two medicines are taken together, the antibiotic may prevent your body from processing disopyramide properly.
What might happen:
Your blood levels of disopyramide may increase and cause an irregular heartbeat.
What you should do about this interaction:
Contact your healthcare professionals (e.g. doctor or pharmacist) about taking these two medicines together. They may already be aware of this interaction and may be monitoring you for it. If you experience an irregular heartbeat, contact your doctor as soon as possible. Do not start, stop, or change the dosage of any medicine before checking with them first.
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