NorethindroneTabletsMestranolContraceptives, Oral, SyntheticEthinyl EstradiolContraceptives, Oral, SequentialNorgestrelContraceptives, Oral, CombinedProgesterone CongenersNorethynodrelPhotometryTablets, Enteric-CoatedMicrococcusProteusPregnenoloneKlebsiellaShigellaChemistry, PharmaceuticalPorphyrinsExcipientsEstradiolDrug CompoundingProgesterone