<prompt> Dilantin causes?Folic acid deficiencyThiamine deficiencyNicotinamide deficiencyRiboflavin deficiency  <response>: 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 