This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2017, Subject name: Pharmacology
[{'content': 'Tetrabenazine acts by inhibiting \nSelect and explain. \nA. MAO-B, B. Vesicular monoamine transpoer, C. Dopamine D2 receptors, D. COMT', 'role': 'user'}, {'content': "Answer: B \nExplanation: Tetrabenazine: Inhibit VMAT 2(vesicular monoamine transpoer), which transpo dopamine and norepinephrine into adrenergic vesicle in nerve ending. Use for treatment of chorea in Huntington and tardive dyskinesia. In above figure: Pharmacologic strategies for dopaminergic therapy of Parkinson's disease. Drugs and their effects are indicated (see text). MAO, monoamine oxidase; COMT, catechol-O-methyltransferase; DOPAC, dihydroxyphenylacetic acid; L-DOPA, levodopa; 3-OMD, 3-O-methydopa; 3-MT, 3-methoxytramine.", 'role': 'assistant'}]