Antiarrhythmic Medicines
What is it? Overview Usage Side Effects and Warnings
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What are Antiarrhythmic Medicines?

The main issue with antiarrhythmic drugs is that unless the underlying rhythm problem can be corrected, they must be taken indefinitely. Also, one of the more unpredictable side effects of some of these medicines is the risk of making the arrhythmia worse. Talk to your doctor about the specific side effects or warning signs to watch for based on the drug you are taking:

 
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