This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
Which drug is responsible for coronary steal phenomenon? 
Select and explain. 
A. Aspirin, B. Clopidogrel, C. Dipyridamole, D. Prasugrel
C: Dipyridamole
Answer: C: Dipyridamole 
Explanation: Ans. C. DipyridamoleDipyridamole is antiplatelet drug responsible for coronary steal phenomenon. It dilates the resistance vessel in non ischaemic area and thus decreasing the blood flow to already ischaemic region.