This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacotherapy In Psychiatry, Subject name: Psychiatry
[{'content': 'Drug of choice to treat attention- deficit/hyperactivity disorder? \nSelect and explain. \nA. Haloperidol, B. Clonidine, C. Methylphenidate, D. Diazepam', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. MethylphenidateTreatment: Pharmacotherapy: first line of treatment1. CNS stimulants- DOC, C/I with known cardiac risks & abnormalitiesa. Methylphenidate (Short& sustained release preparations)-dopamine agonist (DOC)S/E- Headache, stomach, Nausea, insomniaRebound effects: mild irritability, Exacerbates ticsPotential growth suppression-drug holidays', 'role': 'assistant'}]