title: Prinzmetal's variant angina unresponsive to calcium channel-blocking drugs but responsive to combined calcium channel- and beta-blocking drugs.
mesh_terms: D000368:Aged; D000788:Angina Pectoris, Variant / Q000188:drug therapy*; D002121:Calcium Channel Blockers / Q000008:administration & dosage*; D003329:Coronary Vasospasm / Q000188:drug therapy*; D004110:Diltiazem / Q000008:administration & dosage; D004357:Drug Synergism; D004359:Drug Therapy, Combination; D006801:Humans; D008297:Male; D009543:Nifedipine / Q000008:administration & dosage; D011433:Propranolol / Q000008:administration & dosage*
chemical_list: D002121:Calcium Channel Blockers; D011433:Propranolol; D004110:Diltiazem; D009543:Nifedipine