Ethinylestradiol/norethisterone acetate

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Ethinylestradiol /
norethisterone acetate
Combination of
Norethisterone acetateProgestogen
Clinical data
Trade namesEstrostep, Loestrin, Microgestin, others[1]
Other namesEE/NETA
AHFS/Drugs.comProfessional Drug Facts
License data
  • US: X (Contraindicated)
Routes of
By mouth (pill)
ATC code
Legal status
Legal status
CAS Number
PubChem CID
Chemical and physical data
3D model (JSmol)

Ethinylestradiol/norethisterone acetate (EE/NETA), or ethinylestradiol/norethindrone acetate, is a combination of ethinylestradiol (EE) and norethisterone acetate (NETA) which is used as birth control.[1] EE is an estrogen, while norethisterone acetate (NETA) is a progestin.[1] It is taken by mouth.[1]

In 2017, it was the 53rd most commonly prescribed medication in the United States, with more than 14 million prescriptions.[2][3]

Society and culture[edit]

Brand names[edit]

Brand names of EE/NETA include Anovlar, Blisovi, Cumorit, Estrostep, FemHRT, Fyavolv, Gildess, Junel, Larin, Leribane, Loestrin, Mibelas, Microgestin, Minastrin, Norlestrin, Primodos, Taytulla, and Tri-Legest, among others.[4]

In addition, the combination is sold in the United States under the brand name FemHRT for use in menopausal hormone therapy.[5][6]

See also[edit]


  1. ^ a b c d "Estrogen-Progestin Combinations Monograph for Professionals". AHFS. Retrieved 28 December 2018.
  2. ^ "The Top 300 of 2020". ClinCalc. Retrieved 10 April 2020.
  3. ^ "Ethinyl Estradiol; Norethindrone - Drug Usage Statistics". ClinCalc. Retrieved 10 April 2020.
  4. ^ "Ethinyl Estradiol and Norethindrone (Professional Patient Advice)". 13 July 2019. Retrieved 10 April 2020.
  5. ^ "Drug Approval Package: Femhrt (Norethindrone Acetate & Ethinyl Estradiol) NDA #21065". U.S. Food and Drug Administration (FDA). Retrieved 28 December 2018.
  6. ^ "FemHRT- norethindrone acetate/ethinyl estradiol tablet". DailyMed. 14 November 2017. Retrieved 31 December 2019.

External links[edit]