text: Guidelines state that<unk><unk>  blockers can be used for ischemic symptoms that are not relieved by beta blockers, or when beta blockers are contraindicated or produce unpleasant side effects.
option_0: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for calcium channel blockers
option_1: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines antioxidant vitamins and folic acid
option_2: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for antiplatelet therapy
option_3: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for beta blockers
option_4: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for nitroglycerin
option_5: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for blood pressure control
option_6: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for patient education
option_7: Unstable angina / non ST elevation myocardial infarction long-term medical therapy and secondary prevention ACC/AHA guidelines for inhibitors of the RAS