Emergency contraception - | 合法醫療器材資訊網
由KGemzell-Danielsson著作·2013·被引用189次—ThemainmechanismofactionoftheCu-IUDistopreventfertilizationthroughtheeffectofCuionsonspermfunction.Inaddition,iffertilization ...
Concerns regarding the mechanisms of action of emergency contraception (EC) create major barriers to widespread use and could also lead to incorrect use of EC and overestimation of its effectiveness. While the copper intrauterine device (Cu-IUD) is the most effective method available for EC, the hormonal methods are frequently considered to be more convenient and acceptable. Today, the most commonly used method for hormonal EC is levonorgestrel (LNG). More recently, the progesterone receptor modulator ulipristal acetate (UPA) has been shown to be more effective than LNG to prevent an unwanted pregnancy. The main mechanism of action of both LNG and UPA for EC is delaying or inhibiting ovulation. However, UPA appears to have a direct inhibitory effect on follicular rupture which allows it to be effective even when administered shortly before ovulation, a time period when use of LNG is no longer effective. The main mec...
Emergency contraception | 合法醫療器材資訊網
Emergency contraception - | 合法醫療器材資訊網
Emergency Contraception | 合法醫療器材資訊網
Emergency contraception—mechanisms of action | 合法醫療器材資訊網
Mechanism of Action for Emergency Contraception | 合法醫療器材資訊網
Mechanism of action of emergency contraception | 合法醫療器材資訊網
Mechanism of action of levonorgestrel emergency contraception | 合法醫療器材資訊網
Mechanism of Action of Mifepristone and Levonorgestrel for ... | 合法醫療器材資訊網
Mechanism of Action | 合法醫療器材資訊網
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