system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which among the following is a vasoconstrictor?
assistant
The correct answer is  Ans. is 'd' i.e., TXA2 Important mediators* Vasodilatation Histamine, prostaglandins, prostacyclins, serotonin, Nitric oxide, bradykinin.* Vasoconstriction Leukotrienes (LTC4, D4, E4), Thromboxane A2.