Oral contracetpives and vitamin B 6 .
D003276:Contraceptives, Oral / Q000009:adverse effects*; D004967:Estrogens / Q000009:adverse effects; D005260:Female; D006801:Humans; D011247:Pregnancy; D011736:Pyridoxine / Q000378:metabolism*; D000637:Transaminases / Q000378:metabolism; D014364:Tryptophan / Q000378:metabolism; D026681:Vitamin B 6 Deficiency
D003276:Contraceptives, Oral; D004967:Estrogens; D014364:Tryptophan; D000637:Transaminases; D011736:Pyridoxine