This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Dilantin causes? \nSelect and explain. \nA. Folic acid deficiency, B. Thiamine deficiency, C. Nicotinamide deficiency, D. Riboflavin deficiency', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Folic acid deficiency REF: KDT 7th ed p. 405 Adverse effects of phenytoin (Dilantin): At therapeutic levels At high plasma levels * * Gum hyperophy Hirsutism * Cerebellar side effects : ataxia, veigo, diplopia, nystagmus * * Hypersensitivity reactions Megaloblastic anemia due to folate deficiency * Drowsiness , behavorial alterations , hallucinations , disorientation , rigidity * Osteomalacia due to decreased in target sensitivity to * Epigastric pain vit. D * Local vascular damage may be caused by * Interferes with insulin release and hyperglycemia phenytoin * Fetal hydantoin syndrome: hypoplastic phalanges, cleft palate, hair lip, microcephaly. * Fall in BP', 'role': 'assistant'}]