Propanolol is contraindicated in a patient of angina pectoris who is already receiving:: (A) Nifedipine, (B) Aspirin, (C) Verapamil, (D) Isosorbide mononitrate
Answer is C. Propanolol is a b-blocker. Verapamil should not be given with b blockers because additive sinus depression, conduction defects or asystole may occur.