Daltroban is antagonist of ?
Angiotensin
Nitric oxide
Thromboxane A2
Oxytocin
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.