Drug not used in prinzmetal angina is?: (A) Propranolol, (B) Propranolol, (C) Nitritesrites, (D) Isosorbide dinitrate
Answer is A. Ans. is 'a' i.e., Propranolol o P-blocker's are contraindicated because they cause constriction of coronary aery due to unopposed a mediated vasoconstriction.