Hi. Can anyone who is on disopyramide tell me if you have experienced headaches as a side effect? I have now been on it for a month and it is working better than anything I have been on before. I am now able to lie flat in bed which is so wonderful. I really hope the daily headaches are not due to diso as i do not want to come off it but i am taking paracetamol daily and don't want to do that either. The headaches have only been for the last 10 days so I am hoping if it were the diso, they would have started sooner??