I also take isotard , verapamil 120 mg use to be twice a day, but was told to drop one of them and take Flecanide 50mg twice a day, I have now started feeling sick and having a bit of diarrhoea, which has worried me a bit my husband thinks I am not leaving a big enough gap before taking the next one, I take one in morn about 11am before lunch like it says and the other one about 7pm do you think he could be right? the problem only seems to start after I have taken the second one, Suzy