This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Adrenergic System, Subject name: Pharmacology
[{'content': 'All are true regarding prazosin, EXCEPT : \nSelect and explain. \nA. First dose effect, B. Impaired glucose tolerance, C. Selective alpha-1 blocker, D. Is an antihypertensive drug', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' Impaired glucose tolerance * "Prazosin improves the carbohydrate metabolism.It also improves lipid profile lower LDL, increase HDL"', 'role': 'assistant'}]