title: Oral contraceptive agents and vitamins.
mesh_terms: D000748:Anemia, Macrocytic / Q000188:drug therapy / Q000209:etiology; D000818:Animals; D003276:Contraceptives, Oral / Q000009:adverse effects* / Q000494:pharmacology; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D005492:Folic Acid / Q000378:metabolism / Q000627:therapeutic use; D005971:Glutamates / Q000378:metabolism; D006801:Humans; D007408:Intestinal Absorption; D008659:Metabolic Diseases / Q000209:etiology; D009748:Nutrition Disorders; D011732:Pyridoxal Phosphate / Q000378:metabolism; D011736:Pyridoxine / Q000627:therapeutic use; D051381:Rats; D013256:Steroids / Q000378:metabolism / Q000494:pharmacology; D013464:Sulfuric Acids / Q000378:metabolism; D014364:Tryptophan / Q000378:metabolism; D014366:Tryptophan Oxygenase / Q000378:metabolism; D026681:Vitamin B 6 Deficiency / Q000188:drug therapy / Q000209:etiology; D014815:Vitamins / Q000378:metabolism*
chemical_list: D003276:Contraceptives, Oral; D004967:Estrogens; D005971:Glutamates; D013256:Steroids; D013464:Sulfuric Acids; D014815:Vitamins; D011732:Pyridoxal Phosphate; D014364:Tryptophan; D005492:Folic Acid; D014366:Tryptophan Oxygenase; D011736:Pyridoxine