This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sympathetic System, Subject name: Pharmacology
[{'content': 'Which of the following is the mechanism of action of methyl dopa? \nSelect and explain. \nA. Blockade of beta-adrenergic receptors, B. Agonism of alpha 2 receptors, C. Blockade of alpha 2 receptors, D. Agonism of beta 2 receptors.', 'role': 'user'}, {'content': "Answer: B \nExplanation: So, both the Methyl dopa & clonidine are used as Anti- hypeensive drugs. KEY POINTS ABOUT METHYL DOPA It's a prodrug DOC in pregnancy induced hypeension (but if both Labetalol and Methyl dopa are given in option mark Labetalol as the drug of choice S/E of Methyl Dopa - Hemolytic Anemia", 'role': 'assistant'}]