Can you drink alcohol with left bundle branch block?

Yes, with moderation: No issues with moderation unless the underlying cause was an alcohol cardiomyopathy.

Depends: Depends on what caused the LBBB (congenital or after a heart attack), and how much you are drinking. Alcohol in low doses (1-2 drinks/day in men, 1 drink/day in women and older men) is often considered a tonic for the heart and raises "good cholesterol." in higher doses, it can damage the heart, raise blood pressure and cause heart rhythm problems. Talk to your internist or cardiologist about it.