This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Regarding phenytoin ,false is: \nSelect and explain. \nA. Induces microsomal enzymes, B. At very low doses,zero order kinetics occurs, C. Higher the dose,higher is half life, D. Highly protein bound', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The kinetics of metabolism is capacity limited; changes from first order to zero order over the therapeutic range-- REF: KD TRIPATHI 8TH ED. page 414', 'role': 'assistant'}]