Will taking celexa affect my lbbb? my diagnosis of lbbb has given me pretty good anxiety and my doc prescribed 10 mg once a day of citalopram.

IMHO: I admit to an anti-ssri bias, so my opinion is humble, but it is educated. Since heart disease is so serious a threat, even at a conservative dose, i'd try to deal with the anxiety in cbt therapy and with mindfullness meditation before using drugs that are known to have side effects damaging to the heart. Do not stop ssris without doctors management if you've begun, but do consider alternatives.