What are the serious side affects of coreg cr 80 mgs?

COREG CR 80 mg is a beta-blocker, which is a class of drugs that has been proven to lower your blood pressure and used for heart failure.

Serious side effects would include severe hypotension, severe bradycardia (slow heartbeat) fluid overload, severe chest pains and palpitations, low blood sugar, probably Atrio-ventricular block and many others.