text_1: This is a 72-year-old man on Lotrel 5/20, Atenolol 100 milligrams, Cardura 4 milligrams and hydrochlorothiazide 12.5 milligrams.  I read recently that alpha blockers increase the risk of myocardial infarction and if that is the sole medication, you should switch, but they never say what to do if the patient is on a combination of medicines or if the alpha blocker is being used for benign prostatic hypertrophy (and working well for that).  So should you switch then, even if it's working?
text_2: Should the alpha blocker be discontinued in this patient?