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
Dipyridamole acts by - 
Select and explain. 
A. Thromboaxne A2 synthesis inhibition, B. Antagonise the uptake of adenosine by platelet, C. Calcium channel blocking propey, D. None
B: Antagonise the uptake of adenosine by platelet
Answer: B: Antagonise the uptake of adenosine by platelet 
Explanation: Ans. is 'b' i.e., Antagonise the uptake of adenosine by platelet Antiplatelet action of dipvridamole o Dipyridamole interferes with platelet function by increasing the cellular concentration of adenosine 3'5' monophosphate. o This effect is mediated by inhibition of cyclic nucleotide phosphodiesterase or by blockade of uptake of adenosine.