
You should be extremely careful taking Reta with heart issues, especially A-fib. Reta is known to increase heartbeat which could interfere with your cardiac rhythm and send you to the E.R.BNLFL said:I'm on Metoprolol 50mg and Lisinopril 10mg for some AFIB I got 3.5 years ago for some killer pneumonia I got that put me in the ICU for 2 weeks, and another 1 week before they would let me out.