II. Class

  1. 19 Nor-Testosterone Progestin: Gonane

III. Preparation: dl-Norgestrel

  1. Relative Progestational Activity: 2.6
    1. Estrogenic Activity: 0
    2. Androgenic Activity: 4.2
    3. Endometrial Activity: 2.6
    4. Anti-Estrogen: Active
    5. Anabolic: Active
  2. Preparations
    1. Ethinyl Estradiol
      1. Lo-Ovral (0.3/30)
      2. Ovral (0.5/50)
    2. Progesterone only OCP (Mini-Pill)
      1. Ovrette (0.075)

IV. Preparation: Levonorgestrel

  1. Relative Progestational Activity: 5.3
    1. Estrogenic Activity: 0
    2. Androgenic Activity: 8.3
    3. Endometrial Activity: 5.1
    4. Anti-Estrogen: Active
    5. Anabolic: Active
  2. Preparations with Ethinyl Estradiol
    1. Alesse (0.1/20)
    2. Nordette (0.15/30)
    3. Monofeme (0.15/30)
    4. Levlen (0.15/30)
    5. Triphasil (0.05/30 - 0.075/40 - 0.125/30)
    6. Seasonale (0.15/30) - seasonal Contraception
    7. Lybrel (0.09/20) - continuous

V. Adverse Effects

  1. See Oral Contraceptive
  2. Higher risk of Thromboembolism than other OCPs

VI. References

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Related Studies (from Trip Database) Open in New Window

Cost: Medications

levonorgestrel (on 8/17/2016 at Medicaid.Gov Survey of pharmacy drug pricing)
LEVONORGESTREL 1.5 MG TABLET Generic OTC $22.29 each
LEVONORGESTREL-ETH ESTRAD 0.15 MG-0.03 MG TABLET Generic $0.92 each

Ontology: Levonorgestrel (C0023566)

Definition (NCI) The levorotatory form of norgestrel and synthetic progestogen with progestational and androgenic activity. Levonorgestrel binds to the progesterone receptor in the nucleus of target cells, thereby stimulating the resulting hormone-receptor complex, initiating transcription, and increasing the synthesis of certain proteins. This results in a suppression of luteinizing hormone (LH) activity and an inhibition of ovulation, as well as an alteration in the cervical mucus and endometrium.
Definition (NCI_NCI-GLOSS) A form of the hormone progesterone that is made in the laboratory and used to prevent pregnancy. It is being studied in the prevention of ovarian and endometrial cancer, and in the treatment of other conditions. Levonorgestrel is a type of oral contraceptive.
Definition (MSH) A synthetic progestational hormone with actions similar to those of PROGESTERONE and about twice as potent as its racemic or (+-)-isomer (NORGESTREL). It is used for contraception, control of menstrual disorders, and treatment of endometriosis.
Definition (CSP) a synthetic progestational hormone; can be delivered through different routes including capsules inserted under the skin as in Norplant.
Concepts Pharmacologic Substance (T121) , Steroid (T110) , Hormone (T125)
MSH D016912
SnomedCT 326314005, 326422004, 126109000, 109032009
English D Norgestrel, D-Norgestrel, l Norgestrel, l-Norgestrel, Levonorgestrel, Levonorgestrel [combined o/c], Levonorgestrel [progest cont], 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17alpha)-(-)-, (17Alpha)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one, 13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one, 18-Methylnorethisterone, D-(-)-Norgestrel, NORGESTREL L, Levonorgestrel [combined oral contraceptive], Levonorgestrel [progestogen contraceptive], LEVONORGESTREL, levonorgestrel, levonorgestrel (medication), oral contraceptives levonorgestrel, Levonorgestrel [Chemical/Ingredient], d-norgestrel, Levonorgestrel [progestogen contraceptive] (product), Levonorgestrel [combined oral contraceptive] (product), L-norgestrel, Levonorgestrel product, Levonorgestrel (substance), Levonorgestrel preparation (product), Levonorgestrel preparation, Levonorgestrel [combined oral contraceptive] (substance), Levonorgestrel [progestogen contraceptive] (substance), Levonorgestrel preparation (substance), Levonogestrel
Swedish Levonorgestrel
Czech L-norgestrel, levonorgestrel
Finnish Levonorgestreeli
Italian D-Norgestrel, l-Norgestrel, Levonorgestrel
Russian L-NORGESTREL, LEVONORGESTREL, L-НОРГЕСТРЕЛ, ЛЕВОНОРГЕСТРЕЛ
Spanish preparado con levonorgestrel (producto), levonorgestrel (producto), preparado con levonorgestrel, levonorgestrel (anticonceptivo con progestágeno) (producto), levonorgestrel (anticonceptivo con progestágeno), levonorgestrel (anticonceptivo oral combinado) (producto), levonorgestrel (anticonceptivo oral combinado), levonorgestrel (sustancia), levonorgestrel, preparado de levonorgestrel (sustancia), Levonorgestrel, l-Norgestrel
German NORGESTREL L, L-Norgestrel, Levonorgestrel
Polish Lewonorgestrel, 1-norgestrel
Japanese レボノルゲストレル, 1-ノルゲストレル
French Lévonorgestrel, L-Norgestrel
Portuguese Levanogestrel, l-Norgestrel

Ontology: Norgestrel (C0028368)

Definition (NCI) A synthetic progestin commonly used alone or in combination with an estrogen for contraception. Norgestrel suppresses the secretion of luteinizing and follicle-stimulating hormones (LH and FSH), thickens cervical mucus, and slows the transit of ova through the fallopian tubes. This agent also exhibits antiproliferative activity in endometrial tissue and may exhibit chemopreventive and antineoplastic activities in endometrial carcinoma. (NCI04)
Definition (MSH) A synthetic progestational agent with actions similar to those of PROGESTERONE. This racemic or (+-)-form has about half the potency of the levo form (LEVONORGESTREL). Norgestrel is used as a contraceptive, ovulation inhibitor, and for the control of menstrual disorders and endometriosis.
Definition (PDQ) A synthetic progestin commonly used alone or in combination with an estrogen for contraception. Norgestrel suppresses the secretion of luteinizing and follicle-stimulating hormones (LH and FSH), thickens cervical mucus, and slows the transit of ova through the fallopian tubes. This agent also exhibits antiproliferative activity in endometrial tissue and may exhibit chemopreventive and antineoplastic activities in endometrial carcinoma. Check for "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=39310&idtype=1" active clinical trials or "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=39310&idtype=1&closed=1" closed clinical trials using this agent. ("http://nciterms.nci.nih.gov:80/NCIBrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C703" NCI Thesaurus)
Concepts Pharmacologic Substance (T121) , Hormone (T125) , Steroid (T110)
MSH D009644
SnomedCT 82240008, 326440000, 326330002, 126106007
English DL Norgestrel, DL-Norgestrel, Norgestrel, 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17alpha)-(+-)-, norgestrel, Norgestrel [combined o/c], Norgestrel [progestogen o/c], (+/-)-13-Ethyl-17alpha-hydroxy-18,19-dinorpregn-4-en-20-yne-3-one, Norgestrel [combined oral contraceptives], Norgestrel [progestogen oral contraceptive], norgestrel (medication), oral contraceptives norgestrel, NORGESTREL, Norgestrel [Chemical/Ingredient], norgestrol, dl-norgestrel, norgestrel preparation, Norgestrel [progestogen oral contraceptive] (product), Norgestrel [combined oral contraceptives] (product), (17alpha)-(+/-)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yne-3-one, Norgestrel preparation, Norgestrel (substance), Norgestrel preparation (product), NORGES, Norgestrel [combined oral contraceptives] (substance), Norgestrel [progestogen oral contraceptive] (substance), Norgestrel preparation (substance)
Swedish Norgestrel
Czech norgestrel
Finnish Norgestreeli
Russian NORGESTREL, НОРГЕСТРЕЛ
Japanese ノルゲストレル
Spanish norgestrel (producto), preparado con norgestrel (producto), preparado con norgestrel, norgestrel (anticonceptivos orales combinados) (producto), norgestrel (anticonceptivos orales combinados), norgestrel (anticonceptivo oral con progestágeno), norgestrel (anticonceptivo oral con progestágeno) (producto), norgestrel (sustancia), norgestrel, preparado de norgestrel (sustancia), Norgestrel
Croatian NORGESTREL
Polish Norgestrel
Norwegian Not Translated[Norgestrel]
French Norgestrel
German Norgestrel
Italian Norgestrel
Portuguese Norgestrel