In brief: an oral contraceptive with folate.
D000284:Administration, Oral; D000818:Animals; D003276:Contraceptives, Oral / Q000008:administration & dosage* / Q000493:pharmacokinetics; D004338:Drug Combinations; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage* / Q000493:pharmacokinetics; D006801:Humans; D009436:Neural Tube Defects / Q000378:metabolism / Q000517:prevention & control; D016032:Randomized Controlled Trials as Topic / Q000379:methods
D003276:Contraceptives, Oral; D004338:Drug Combinations; D005492:Folic Acid