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Levonorgestrel

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Patel P, Bajaj T.
europepmc   +9 more sources

Levonorgestrel Microneedle Array Patch for Sustained Release Contraception: Formulation, Optimization and In Vivo Characterization

Molecules, 2022
Background: The goal of this work was to develop a levonorgestrel liposome-loaded microneedle array patch for contraception. Methods: Levonorgestrel-loaded liposome was formulated by a solvent injection technique, characterized, and studied. Results: The
Amarjitsing Rajput, Riyaz Ali M. Osmani, Achyut Khire, Sanket Jaiswal, Rinti Banerjee   +4 more
doaj   +1 more source

Comparison of levonorgestrel level and creamatocrit in milk following immediate versus delayed postpartum placement of the levonorgestrel IUD

BMC Women's Health, 2021
Background Breastfeeding and postpartum contraception critically influence infant and maternal health outcomes. In this pilot study, we explore the effects of timing and duration of postpartum levonorgestrel exposure on milk lipid and levonorgestrel ...
Niaree G. Hopelian, Rebecca G. Simmons, Jessica N. Sanders, Katherine Ward, Sabrina Malone Jenkins, Eve Espey, David K. Turok   +6 more
doaj   +1 more source

Silicone elastomer formulations for improved performance of a multipurpose vaginal ring releasing dapivirine and levonorgestrel

International Journal of Pharmaceutics: X, 2021
A dapivirine-releasing silicone elastomer vaginal ring for reducing women's risk of HIV acquisition has recently been approved. A next-generation multipurpose vaginal ring releasing dapivirine and levonorgestrel is currently in development, offering ...
Yahya H. Dallal Bashi, Diarmaid J. Murphy, Clare F. McCoy, Peter Boyd, Leeanne Brown, Matthew Kihara, François Martin, Nicole McMullen, Kyle Kleinbeck, Bindi Dangi, Patrick Spence, Bashir Hansraj, Brid Devlin, R. Karl Malcolm   +13 more
doaj   +1 more source

Levonorgestrel intrauterine device as a non-invasive approach of abnormal uterine bleeding caused by cesarean scar defect [PDF]

Romanian Medical Journal, 2021
Cesarean scar defect, niche or isthmocele represents a poor healing in the anterior uterine wall after performing a cesarean section. The cesarean scar defect can be asymptomatic, or the patient could present abnormal uterine bleeding, chronic pelvic ...
Roxana-Elena Bohiltea, Bianca-Margareta Mihai, Valentin Varlas, Vlad Dima, Tiberiu Augustin Georgescu, Emilia-Maria Vladareanu, Nicolae Bacalbasa, Corina Grigoriu   +7 more
doaj   +1 more source

Progestins Related to Progesterone and Testosterone Elicit Divergent Human Endometrial Transcriptomes and Biofunctions. [PDF]

, 2020
Progestins are widely used for the treatment of gynecologic disorders and alone, or combined with an estrogen, are used as contraceptives. While their potencies, efficacies and side effects vary due to differences in structures, doses and routes of ...
Balayan, Shayna, Chen, Joseph C, Giudice, Linda C, Greenblatt, Ruth M, Houshdaran, Sahar, Irwin, Juan C, Smith-McCune, Karen, Vallvé-Juanico, Júlia, Vo, Kim Chi   +8 more
core   +2 more sources

Levonorgestrel intrauterine system embedded within tubal ectopic pregnancy: a case report

Journal of Medical Case Reports, 2021
Background The presence of the levonorgestrel-releasing intrauterine system embedded within an ectopic pregnancy is a rare occurrence. Tubal migration of an intrauterine device is not well understood and has not been extensively studied in literature ...
Dorothy Makena, Ingrid Gichere, Khadija Warfa   +2 more
doaj   +1 more source

Effects of Levonorgestrel and progesterone on Oviductal physiology in mammals

Reproductive Biology and Endocrinology, 2018
Background Our previous study indicated that emergency contraception, including levonorgestrel and progesterone, could lead to ectopic pregnancy following contraception failure. However, our understanding of the effects of levonorgestrel and progesterone
Cheng Li, Hui-Yu Zhang, Yan Liang, Wei Xia, Qian Zhu, Duo Zhang, Zhen Huang, Gui-Lin Liang, Rui-Hong Xue, Hang Qi, Xiao-Qing He, Jiang-Jing Yuan, Ya-Jing Tan, He-Feng Huang, Jian Zhang   +14 more
doaj   +1 more source

Biodegradable hollow fibres for the controlled release of hormones [PDF]

, 1987
Poly(l-lactide), (PLLA), hollow fibres were prepared using a dry-wet phase inversion spinning process. The effect of several spinning parameters (i.e. bore medium flow rate, spinning dope extrusion rate, fibre take-up rate, and spinning height) on the ...
Albers, J.H.M., Eenink, M.J.D., Feijen, J., Greidanus, P.J., Olijslager, J., Rieke, J.C.   +5 more
core   +3 more sources

Cómo y cuándo el levonorgestrel previene el embarazo si se administra como anticonceptivo de emergencia

ARS Medica, 2008
En esta revisión se actualiza el mecanismo de acción del levonorgestrel (LNG) usado en anticoncepción de emergencia. El análisis crítico de la estimación de la eficacia anticonceptiva del LNG indica que su tasa de falla es más alta que la publicada.
Horacio Croxatto Avoni, María Elena Ortiz Scarlazetta   +1 more
doaj   +1 more source