Hi Sue. Saw my cardiologist today and inquired about correlation between lung infections and beta blockers as opposed to calcium channel blockers. He acknowledged a slight increase with beta blockers. However, in his opinion, the beta blocker better controlled Afib than the calcium channel blocker. We all have our individual unique set of circumstances and factors to consider in the decision process. The older I get, the more I realize the medical profession is risk assessment. No easy answers for anyone. If only there was a magic wand!