- Tri-Norinyl
- Tri-Nor·i·nyl (tri-norґĭ-nəl) trademark for a therapeutic regimen of norethindrone and ethinyl estradiol.
Medical dictionary. 2011.
Medical dictionary. 2011.
Oral contraceptive formulations — Oral contraceptives come in a variety of formulations. The main division is between combined oral contraceptive pills, containing both estrogen and synthetic progestogens (strictly progestins, the term used in the United States, but the former… … Wikipedia