I had a Cardioversion on Friday 9th which was successful. I was to take 150MG of Flecainide Acetate Tablets once a day after. In error I only took 50MG and on Sunday night 11th my Atrial Fibrillation had returned. Should I stop taking the Flecainide now, today? My Dr will not get back to me until tomorrow? Neither the Pharmacy nor another Dr will help either as one Dr is dealing with it. What do I do?