This is my second posting. Please ignore my spelling skills. I am a 36yr old M. Have had palpations, skipped and extra beats for yrs. Every diagnosis, echocardiagram, blood, thyroid test is normal. Had a bout of Atriel Fibulation Tuesday night, went to the ER. Again, all tests came back normal. The finest Cardiologist in the area came to se me and let me go home after I was medicated out of the A-Fib with Rythmol. The conversion to normal sinus from a-fib took 16-18hrs. I am now taking Rythmol every 8 hrs along with the Atenonol I had been taking. The abnormal beats have returned, 1 1/2 days after walking out of the hospital with normal rythms. How long will this Rythmol take to start working??? I am at the end of my rope!!