This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
With respect to ticlopidine, clopidogrei: 
Select and explain. 
A. Is more likely to cause formation of antiplatelet antibodies, B. 15 less likely to cause neutropenia, C. Is more likely to cause severe bleeding, D. Has a greater antiplatelet effect
B: 15 less likely to cause neutropenia
Answer: B: 15 less likely to cause neutropenia 
Explanation: (Ref: KDT 6/e p610) Ticlopidine and clopidogrel are ADP antagonists and are used as antiplatelet drugs. Antiplatelet action, chances of bleeding and formation of antibodies is similar with these two agents. Clopidogrel is better tolerated because it is less likely to cause severe neutropenia and thrombocy topenia as compared to ticlopidine.