Propanolol is contra-indicated in a patient of angina pectoris who is already receiving:
(Ref: KDT 6/e p530) Both verapamil and propanolol decrease the conduction through AV node and their concomitant use can result in hea block.
Nifedipine
Aspirin
Verapamil
Isosorbide mononitrate
Other topics and Adverse effects