Have been prescribed this beta blocker to help my palpitations and anxiety. just started taking this for anxiety Told to take 10mg 3 times a day and for the first few days just take 10mg twice a day. Have done so but today took a lunchtime dose so that I would have three doses today. Trouble is although it has bought my heart rate down I feel as though feel as though I have been hit with a sledgehammer . Dosnt seem to be doing anything much for palpitations. Am I expecting too much too soon and should I let my body get used used to this stuff. Not helped by the fact I take occasional doses of cinnazarine to help my vertigo and that makes me drowsy as well. Any ideas anyone.