Conjugated estrogens/norgestrel

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Conjugated estrogens/norgestrel
Estrone sulfate.svg
Estrone sulfate (major active component of conjugated estrogens)
Levonorgestrel (active form of norgestrel)
Combination of
Conjugated estrogensEstrogen
NorgestrelProgestogen; Progestin
Clinical data
Trade namesPrempak-C
Other namesCEEs/NG
Routes of
By mouth
Drug classEstrogen; Progestin; Progestogen
Legal status
Legal status
CAS Number

Conjugated estrogens/norgestrel (CEEs/NG), sold under the brand name Prempak-C among others, is a combination of conjugated estrogens (CEEs), an estrogen, and norgestrel (NG), a progestin, which is used in menopausal hormone therapy in postmenopausal women.[1][2][3][4] It is taken by mouth and contains 0.625 or 1.25 mg CEEs and 150 μg NG (or 75 μg levonorgestrel) per tablet.[1][2][3][4] The medication is no longer marketed.[5][6]

See also[edit]


  1. ^ a b Cartwright S, Godlee C (20 January 2012). Churchill's Pocketbook of General Practice E-Book. Elsevier Health Sciences. pp. 55–. ISBN 978-0-7020-5073-2.
  2. ^ a b Erkkola R (1 January 2006). The Menopause. Elsevier. pp. 265–. ISBN 978-0-444-51830-9.
  3. ^ a b Filshie M, Guillebaud J (22 October 2013). Contraception: Science and Practice. Elsevier Science. pp. 229–. ISBN 978-1-4831-6366-6.
  4. ^ a b Constanti A (17 February 1998). Basic Endocrinology for Students of Pharmacy and Allied Health Sciences. CRC Press. pp. 102–. ISBN 978-90-5702-250-0.
  5. ^ "Norgestrel".
  6. ^ "Levonorgestrel".