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    Glossary Levonorgestrel

    synthetic hormone used in emergency contraception like Plan B

    Levonorgestrel is a synthetic hormone used in various forms of contraception, including emergency contraceptive pills like Plan B. It works by preventing ovulation, fertilization, or implantation of a fertilized egg, thereby reducing the chance of pregnancy if taken shortly after unprotected sex.

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    Research 30 of 238

    1. Levonorgestrel effects on serum androgens, sex hormone–binding globulin levels, hair shaft diameter, and sexual function Fertility and Sterility · 2009 · 20 citations
    2. Incidence of androgenic dermatologic side effects following placement of a levonorgestrel intrauterine device for menorrhagia: A survey-based study Journal of the American Academy of Dermatology · 2017 · 11 citations
    3. PHARMACOVIGILANCE STUDY OF SIDE EFFECTS ASSOCIATED WITH LEVONORGESTROL -ETHINYL ESTRADIOL AND DEPOTMEDROXY PROGESTERONE ACETATE 2024
    4. Effects of 17 α-ethinylestradiol,Norethindrone and Levonorgestrel on Root Growth of Arabidopsis thaliana Xibei zhiwu xuebao · 2006
    5. FERTILITY-SPARING MANAGEMENT OF ENDOMETRIAL INTRAEPITHELIAL NEOPLASIA & ENDOMETRIAL CANCER: A COMPARISON OF THE LEVONORGESTREL-RELEASING INTRAUTERINE DEVICE VS SYSTEMIC THERAPY Fertility and Sterility · 2025
    6. Effects of depot medroxyprogesterone acetate, the copper IUD and the levonorgestrel implant on testosterone, sex hormone binding globulin and free testosterone levels: ancillary study of the ECHO randomized clinical trial BMC women's health · 2024
    7. Acne Resolution Rates: Results of a Single-Blind, Randomized, Controlled, Parallel Phase III Trial with EE/CMA (Belara<sup>®</sup>) and EE/LNG (Microgynon<sup>®</sup>) Dermatology · 2001 · 88 citations
    8. Inhibition of skin 5α-reductase by oral contraceptive progestins<i>in vitro</i> Gynecological Endocrinology · 2000 · 78 citations
    9. Venous and pulmonary thromboembolism and combined hormonal contraceptives. Systematic review and meta-analysis The European Journal of Contraception & Reproductive Health Care · 2012 · 63 citations
    10. Combined hormonal contraception and venous thromboembolism The European Journal of Contraception & Reproductive Health Care · 2007 · 46 citations
    11. The effects of synthetic 19-norprogestins on osteoblastic cell function are mediated by their non-phenolic reduced metabolites Journal of Endocrinology · 2007 · 13 citations
    12. Family planning 2011: better use of existing methods, new strategies and more informed choices for female contraception Human Reproduction Update · 2012 · 11 citations
    13. Progestogens in menopausal hormone therapy Przeglad Menopauzalny · 2015 · 10 citations
    14. Effects of oral contraceptives on the quality of life of women with polycystic ovary syndrome: a crossover randomized controlled trial Health and Quality of Life Outcomes · 2020 · 7 citations
    15. PCOS and Obesity: Contraception Challenges Open Access Journal of Contraception · 2025 · 4 citations
    16. Use of combined oral contraceptives and risk of venous thromboembolism in young women: a nested case–control analysis using German claims data BJOG: An International Journal of Obstetrics and Gynaecology · 2022 · 3 citations
    17. Correlations between hormonal intrauterine devices and androgenic skin conditions: A retrospective cohort study Journal of The American Academy of Dermatology · 2022 · 2 citations
    18. Sex Hormones: Hormonal Contraception and Hormone Replacement Therapy 2019 · 2 citations
    19. Long-acting microneedle formulations Advanced Drug Delivery Reviews · 2023 · 1 citations
    20. The Use/Abuse of Oral Contraceptive Pills Among Males: A Mixed-Method Explanatory Sequential Study Over Jordanian Community Pharmacists medRxiv (Cold Spring Harbor Laboratory) · 2021 · 1 citations
    21. Decreased allopregnanolone induced by hormonal contraceptives is associated with a reduction in social behavior and sexual motivation in female rats UNICA IRIS Institutional Research Information System (University of Cagliari) · 2013 · 1 citations
    22. Molecular interactions of natural and synthetic steroids in female hamsters’ flank organs Journal of Dermatological Science · 2012 · 1 citations
    23. Sessualità e sindrome dell’ovaio policistico ˜L'œEndocrinologo · 2023
    24. Efficacy Of Cyproterone Acetate And Drosperinone Containing Cocps In Treatment Of Hirsutism In Patients With PCOS 2023
    25. Effects of oral contraceptives on the quality of life of women with polycystic ovary syndrome: a crossover randomized controlled trial Research Square (Research Square) · 2020
    26. Effects of oral contraceptives on the quality of life of women with polycystic ovary syndrome: a crossover randomized controlled trial Research Square (Research Square) · 2020
    27. The Differences Between Hormonal Pills and Injection Contraception Adverse Effect: Pekanbaru Puskesmas Case Study 2019
    28. Sex hormones and related compounds, including hormonal contraceptives Side effects of drugs annual · 2014
    29. Actualités du SOPK Annales D Endocrinologie · 2006
    30. Effect of norplant on androgens and sexual function Fertility and Sterility · 2004