Daltroban is antagonist of -
Angiotensin
Nitric oxide
Thromboxane A2
Oxytocin
Ans. is 'c' i.e., Thromboxane A2o Drug affecting TXA2 are: -i) Cox inhibitors like aspirin and other NS AIDS inhibit the synthesis of TXA2.ii) Daltroban and sultraban are TXA2 receptor antagonists.iii) Dazoxiben inhibit the enzyme thromboxane synthase.
Immunomodulator