Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Edit custom filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1960 1
1961 2
1962 7
1963 16
1964 60
1965 66
1966 61
1967 62
1968 75
1969 57
1970 70
1971 68
1972 62
1973 71
1974 93
1975 70
1976 64
1977 55
1978 56
1979 47
1980 74
1981 35
1982 70
1983 54
1984 42
1985 47
1986 37
1987 41
1988 33
1989 52
1990 46
1991 36
1992 26
1993 31
1994 23
1995 27
1996 13
1997 14
1998 15
1999 20
2000 16
2001 21
2002 14
2003 22
2004 14
2005 13
2006 19
2007 12
2008 16
2009 12
2010 9
2011 14
2012 17
2013 9
2014 8
2015 10
2016 14
2017 8
2018 10
2019 7
2020 8
2021 10
2022 9
2023 6
2024 4
2025 4
2026 2

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

2,070 results

Results by year

Filters applied: . Clear all
Page 1
Hormonal contraception in women with endometriosis: a systematic review.
Grandi G, Barra F, Ferrero S, Sileo FG, Bertucci E, Napolitano A, Facchinetti F. Grandi G, et al. Eur J Contracept Reprod Health Care. 2019 Feb;24(1):61-70. doi: 10.1080/13625187.2018.1550576. Epub 2019 Jan 21. Eur J Contracept Reprod Health Care. 2019. PMID: 30664383
Only two COC preparations (ethinylestradiol [EE]/norethisterone acetate [NETA] and a flexible EE/drospirenone regimen) demonstrated significantly increased efficacy compared with placebo. ...
Only two COC preparations (ethinylestradiol [EE]/norethisterone acetate [NETA] and a flexible EE/drospirenone regimen) demonstrated s …
Pharmacology and toxicology of ethinyl estradiol and norethindrone acetate in experimental animals.
Maier WE, Herman JR. Maier WE, et al. Regul Toxicol Pharmacol. 2001 Aug;34(1):53-61. doi: 10.1006/rtph.2001.1483. Regul Toxicol Pharmacol. 2001. PMID: 11502156 Review.
For over 30 years various combinations of synthetic estrogens and progestins have been used in oral contraceptive formulations. Ethinyl estradiol (EE) and norethindrone acetate (NA) are common synthetic hormones used in oral contraceptives such as Loestrin, B …
For over 30 years various combinations of synthetic estrogens and progestins have been used in oral contraceptive formulations. Ethinyl …
Oral contraceptives.
Maclennan AH. Maclennan AH. Curr Ther (Seaforth). 1987 Dec;28(12):113-22. Curr Ther (Seaforth). 1987. PMID: 12317413
Combined oral contraceptives contain either ethinyl estradiol (1.7 to 2 times more potent) or mestranol. After absorption the progestagens, norethisterone acetate, ethynodiol diacetate and lynoestrenol are all metabolized to norethisterone. ...The Yuzp …
Combined oral contraceptives contain either ethinyl estradiol (1.7 to 2 times more potent) or mestranol. After absorption the …
The Primodos components Norethisterone acetate and Ethinyl estradiol induce developmental abnormalities in zebrafish embryos.
Brown S, Fraga LR, Cameron G, Erskine L, Vargesson N. Brown S, et al. Sci Rep. 2018 Feb 13;8(1):2917. doi: 10.1038/s41598-018-21318-9. Sci Rep. 2018. PMID: 29440757 Free PMC article.
Though Primodos is no longer used, it's components, Norethisterone acetate and Ethinyl estradiol, are used in other medications today including treatments for endometriosis and contraceptives. ...These data demonstrate that Norethisterone acetate and …
Though Primodos is no longer used, it's components, Norethisterone acetate and Ethinyl estradiol, are used in other med …
Thalidomide does not alter the pharmacokinetics of ethinyl estradiol and norethindrone.
Trapnell CB, Donahue SR, Collins JM, Flockhart DA, Thacker D, Abernethy DR. Trapnell CB, et al. Clin Pharmacol Ther. 1998 Dec;64(6):597-602. doi: 10.1016/S0009-9236(98)90050-9. Clin Pharmacol Ther. 1998. PMID: 9871424 Clinical Trial.
An open-label crossover study was conducted to evaluate the effect of thalidomide on the plasma pharmacokinetics of ethinyl estradiol (INN, ethinyl estradiol) and norethindrone (INN, norethisterone) among 10 women who had undergone surgic …
An open-label crossover study was conducted to evaluate the effect of thalidomide on the plasma pharmacokinetics of ethinyl estrad …
Dissolution testing of norethindrone:ethinyl estradiol, norethindrone:mestranol, and norethindrone acetate:ethinyl estradiol combination tablets.
Nguyen HT, Shiu GK, Worsley WN, Skelly JP. Nguyen HT, et al. J Pharm Sci. 1990 Feb;79(2):163-7. doi: 10.1002/jps.2600790217. J Pharm Sci. 1990. PMID: 2324966
Most of the combination products of norethindrone (NE):ethinyl estradiol (EE) dissolved satisfactorily in water using the paddle method which was first proposed by U.S.P., whereas three of 18 tested products showed better dissolution in acidic aqueous medium …
Most of the combination products of norethindrone (NE):ethinyl estradiol (EE) dissolved satisfactorily in water using t …
The effect of isotretinoin on the pharmacokinetics and pharmacodynamics of ethinyl estradiol and norethindrone.
Hendrix CW, Jackson KA, Whitmore E, Guidos A, Kretzer R, Liss CM, Shah LP, Khoo KC, McLane J, Trapnell CB. Hendrix CW, et al. Clin Pharmacol Ther. 2004 May;75(5):464-75. doi: 10.1016/j.clpt.2004.01.003. Clin Pharmacol Ther. 2004. PMID: 15116059 Clinical Trial.
RESULTS: The addition of isotretinoin to the oral contraceptive regimen resulted in small and inconsistent, although statistically significant (P <.04), decreases in the concentrations of both ethinyl estradiol (9% decrease in area under the plasma concentration- …
RESULTS: The addition of isotretinoin to the oral contraceptive regimen resulted in small and inconsistent, although statistically significa …
A study of combined continuous ethinyl estradiol and norethindrone acetate for postmenopausal hormone replacement.
Williams SR, Frenchek B, Speroff T, Speroff L. Williams SR, et al. Am J Obstet Gynecol. 1990 Feb;162(2):438-46. doi: 10.1016/0002-9378(90)90402-s. Am J Obstet Gynecol. 1990. PMID: 2309827 Clinical Trial.
In a blinded, prospective, dose-response pilot study of continuous estrogen-progestin replacement therapy, 77 thin, nonsmoking, white women, who were 12 to 60 months postmenopausal and had normal medical histories, were randomly assigned to receive one of five dose combinations o …
In a blinded, prospective, dose-response pilot study of continuous estrogen-progestin replacement therapy, 77 thin, nonsmoking, white women, …
A contraceptive vaginal ring releasing norethindrone acetate and ethinyl estradiol.
Ballagh SA, Mishell DR Jr, Lacarra M, Shoupe D, Jackanicz TM, Eggena P. Ballagh SA, et al. Contraception. 1994 Dec;50(6):517-33. doi: 10.1016/0010-7824(94)90011-6. Contraception. 1994. PMID: 7705095 Clinical Trial.
A core design contraceptive vaginal ring (CVR) releasing 650 mcg of norethindrone acetate (NA) and 10, 20, 30 or 65 mcg of ethinyl estradiol (EE) daily was developed and tested in 99 women. ...
A core design contraceptive vaginal ring (CVR) releasing 650 mcg of norethindrone acetate (NA) and 10, 20, 30 or 65 mcg of ethinyl …
Simultaneous determination of norethindrone and ethinyl estradiol in human plasma by high performance liquid chromatography with tandem mass spectrometry--experiences on developing a highly selective method using derivatization reagent for enhancing sensitivity.
Li W, Li YH, Li AC, Zhou S, Naidong W. Li W, et al. J Chromatogr B Analyt Technol Biomed Life Sci. 2005 Oct 25;825(2):223-32. doi: 10.1016/j.jchromb.2005.01.012. J Chromatogr B Analyt Technol Biomed Life Sci. 2005. PMID: 16213451
In the present work, for the first time, a liquid chromatographic method with tandem mass spectrometric detection (LC-MS/MS) for the simultaneous analysis of norethindrone, and ethinyl estradiol, was developed and validated over the concentration range of 50- …
In the present work, for the first time, a liquid chromatographic method with tandem mass spectrometric detection (LC-MS/MS) for the simulta …
2,070 results