Results 1 to 10 of about 12,501 (219)

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   +2 more sources

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

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

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

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

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

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

NOMAC-E2 compares to LNG combined oral contraceptives in women over forty: real-world PRO-E2 study

Gynecological Endocrinology, 2023
Objective To investigate safety and effectiveness of NOMAC-E2 and levonorgestrel-containing COCs (COCLNG) in users over 40.Methods In this large, observational study, new users1 of NOMAC-E2 and COCLNG were recruited in Europe, Australia, and Latin ...
Sophia von Stockum, Kerstin Becker, Anja Bauerfeind, Christian Franke, Franca Fruzzetti, Joaquim Calaf, Christoph Keck, Klaas Heinemann   +7 more
doaj   +1 more source

Engineering a segmented dual-reservoir polyurethane intravaginal ring for simultaneous prevention of HIV transmission and unwanted pregnancy.

PLoS ONE, 2014
The HIV/AIDS pandemic and its impact on women prompt the investigation of prevention strategies to interrupt sexual transmission of HIV. Long-acting drug delivery systems that simultaneously protect womenfrom sexual transmission of HIV and unwanted ...
Justin T Clark, Meredith R Clark, Namdev B Shelke, Todd J Johnson, Eric M Smith, Andrew K Andreasen, Joel S Nebeker, Judit Fabian, David R Friend, Patrick F Kiser   +9 more
doaj   +1 more source

The use of emergency hormonal contraception in South Africa: current and future perspectives

South African Family Practice, 2019
Emergency hormonal contraceptives play an important role in preventing unplanned pregnancies in South Africa. In this review, we discuss the levonorgestrel emergency contraceptive, the combined estrogen and progestin regimen (also known as the Yuzpe ...
N. Dahan-Farkas, M. Vally
doaj   +1 more source