کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9317363 1251547 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of ethinylestradiol pharmacokinetics in three hormonal contraceptive formulations: the vaginal ring, the transdermal patch and an oral contraceptive
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی زنان، زایمان و بهداشت زنان
پیش نمایش صفحه اول مقاله
Comparison of ethinylestradiol pharmacokinetics in three hormonal contraceptive formulations: the vaginal ring, the transdermal patch and an oral contraceptive
چکیده انگلیسی
This open-label, randomized study compared the pharmacokinetics of ethinylestradiol (EE) from the contraceptive vaginal ring NuvaRing (15 μg EE/day), the transdermal patch (20 μg EE/day) and a combined oral contraceptive (COC) containing 30 μg EE. After 2-8 weeks of synchronization by COC treatment, subjects were randomized to 21 days of treatment with NuvaRing, patch or COC. Analysis of area under the EE concentration-versus-time curve (AUC) during 21 days of treatment showed that exposure to EE in the NuvaRing group was 3.4 times lower than in the patch group (p<.05) and 2.1 times lower than in the pill group (p<.05). Serum EE levels of subjects showed much lower variation with NuvaRing than with the patch or the COC. Thus, exposure to EE was significantly lower with NuvaRing than with the patch and pill methods, demonstrating that NuvaRing is a low-estrogen-dose contraceptive method that also results in low estrogen exposure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Contraception - Volume 72, Issue 3, September 2005, Pages 168-174
نویسندگان
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