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
Daltroban is antagonist of ? 
Select and explain. 
A. Angiotensin, B. Nitric oxide, C. Thromboxane A2, D. Oxytocin
C: Thromboxane A2
Answer: C: Thromboxane A2 
Explanation: Ans. is 'c' i.e., Thromboxane A2 Drug affecting TXA2 are : - Cox inhibitors like aspirin and other NSAIDS inhibit the synthesis of TXA2. Daltroban and sultraban are TXA2 receptor antagonists. Dazoxiben inhibit the enzyme thromboxane synthase.