Marge
                    
                    
                    
                    
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                        After visiting my cardiologist because of irregular heart beat and bloodwork done,I was told this was because of low potassium, I am taking 50 mg HCTZ daily (water pill) to control my hypertension. My magnesium is low.  My potassium (k-dur) was increased from 20mcq daily to 30. I was placed on magnesium 3 times a day. Has anyone experience this problem?  Scary when your heart start dancing in your chest.