This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Mechanism of action of dipyridamole - 
Select and explain. 
A. Adenosine reuptake inhibition, B. Increases PGI,, C. Inhibits cycloxygenase, D. None
A: Adenosine reuptake inhibition
Answer: A: Adenosine reuptake inhibition 
Explanation: Ans. is 'a' i.e., Adenosine reuptake inhibition o Dipyridamole is a powerful coronary dilator; increases total coronary flow by preventing uptake and degradation of adenosine. Remember o Dipyridamol potentiates the action of PG12.