Propranolol is C/I in a patient of angina who is already receiving: (A) Nifedipine, (B) Aspirin, (C) Verapamil, (D) Isosorbide mononitrate
Answer is C. propranolol is a beta blocker and verapamil is a calcium channel blocker both given in combination can cause decrease in hea rate drastically hence contraindicated. Ref: KD Tripathi 8th ed.