text_1: This patient has chronic obstructive pulmonary disease and essential tremor.  He wants a pulmonary consult but he's still smoking.  I am referring him at his request.  I have him on Inderal which helps his essential tremor a lot.  Should I keep him on this or take him off because of his chronic obstructive pulmonary disease?
text_2: Keep him on propranolol for essential tremor or take him off because of chronic obstructive pulmonary disease?