Hi. I'm a newbie having been diagnosed with a fib/flutter in Nov. I saw my consultant today for the first time today and she's taken me off Bisprolol due to side effects (horrific nightmares) and prescribed Adizem XL. Having looked on line (as we all do these days!) they seem to potentially have worse side effects e.g. swelling feet, depression etc. So ... has anyone tried them? Are they better or worse than Bisprolol?