Though nitrates and calcium channel blockers are both vasodilators, they are used concurrently in angina pectoris, because:
A) They antagonise each other's side effects
B) Nitrates primarily reduce preload while calcium channel blockers primarily reduce after-load
C) Nitrates increase coronary flow while calcium channel blockers reduce cardiac work
D) Both 'B' and 'C' are correct
Correct Answer:
Verified
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