Results 21 to 30 of about 34,408 (308)

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

The progestogen content of combined oral contraceptives and venous thromboembolic risk [PDF]

, 2011
Peer ...
Hannaford, Philip C
core   +1 more source

Levonorgestrel concentrations during use of levonorgestrel rod (LNG ROD) implants

Contraception, 1997
In a three-year randomized trial that included 398 women, blood samples were collected for the purpose of assaying levonorgestrel concentrations in women using a new two-rod contraceptive implant system or an earlier implant formulation, Norplant-2 implants.
Sivin, I., Lähteenmäki, P., Ranta, S., Darney, P., Klaisle, C., Wan, L., Mishell Jr., D.R., Lacarra, M., Viegas, O.A.C., Bilhareus, P., Koetsawang, S., Piya-Anant, M., Diaz, S., Pavez, M., Alvarez, F., Brache, V., LaGuardia, K., Nash, H., Stern, J.   +18 more
openaire   +3 more sources

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

Drug Points: Apparent interaction between warfarin and levonorgestrel used for emergency contraception [PDF]

, 2000
No abstract ...
Ellison, J., Greer, I.A., Thomson, A.J., Walker, I.D.   +3 more
core   +2 more sources

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

Comparative pharmacokinetic analysis of levonorgestrel-releasing intrauterine systems and levonorgestrel-containing contraceptives with oral or subdermal administration route

European journal of contraception & reproductive health care, 2020
Objective To compare systemic exposure to levonorgestrel (LNG) released from commercially available intrauterine systems (IUSs), a subdermal implant, and oral contraceptives.
B. Hofmann, D. Apter, J. Bitzer, Isabel Reinecke, M. Serrani, J. Höchel, Martin Merz   +6 more
semanticscholar   +1 more source

Concomitant contraceptive implant and efavirenz use in women living with HIV: perspectives on current evidence and policy implications for family planning and HIV treatment guidelines. [PDF]

, 2017
IntroductionPreventing unintended pregnancies is important among all women, including those living with HIV. Increasing numbers of women, including HIV-positive women, choose progestin-containing subdermal implants, which are one of the most effective ...
Cohen, Craig R, Kiarie, James, Morroni, Chelsea, Patel, Rena C, Scarsi, Kimberly K, Sripipatana, Tabitha   +5 more
core   +2 more sources

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