产品描述
抗雌激素类固醇米非司酮
什么是米非司酮？米非司酮如何工作？
米非司酮是一种终止早期怀孕的药丸。美国食品和药物管理局（FDA）批准米非司酮在妇女最后一次月经开始后的49天内使用。证据表明，在女性上一次的第一天后63天或9周内可以安全使用。米非司酮通过阻断激素孕酮的受体来终止妊娠，导致子宫壁的衬垫与月经周期相似。它还增加前列腺素水平并扩张子宫颈，便于堕胎。当接着施用米索前列醇引起子宫收缩的前列腺素时，大约97％的时间内，米非司酮结束了不想要的妊娠。“3在这种情况下，米非司酮不工作，在随访期间由超声波测定，一名女性将需要进行手术堕胎。
一名女性如何服用米非司酮来终止怀孕？
根据FDA批准的米非司酮（米非司酮）方案，采取以下三个步骤：
第一步：一名女医生首先服用600毫克米非司酮（三口200毫克口服药片），由医疗人员给予她。这个第一次行政管理通常发生在她的医生办公室，医院或诊所。应该为所有妇女提供疼痛治疗镇痛药。药物流产后感染的风险很低，因此使用抗生素作为药物流产方案的一部分是不必要的。
第二步：两天后，一名女子需要400微克（两百毫克药丸）的米索前列醇。她和她的医疗服务提供者将会计划这一剂量的位置和时间，包括在家里进行治疗。此时建议戴上卫生巾，以帮助女性追踪她的出血。服用米索前列醇后4-6小时通常最重。有关米索前列醇的更多信息，请点击：这里
第三步：服用米非司酮后约14天，一名妇女将返回医疗保健提供者进行随访，以超声波确定怀孕是否已被终止。服用米非司酮和米索前列醇后，一名女性也可能出现轻度出血或发现长达四周的斑点。
谁不应该使用米非司酮？
如果一个女人不应该使用米非司酮：
怀孕了63天甚至9周。
目前有一个宫内节育器。在进行药物流产之前，她需要将其取出。
有异位妊娠（一个在子宫外，通常在输卵管中）
有怀孕胎儿（其中胎盘发育不正常）。
有严重的肾上腺，心脏，肾脏或肝脏问题。
对米非司酮或其他前列腺素有过敏史。
已被诊断为出血性疾病或正在进行减血疗法。
在不太可能的情况下，药物不会结束她的怀孕，不愿意进行手术堕胎。
不能来跟进约会。
无法使用电话，运输和备用医疗。

Product Description
Anti Estrogen Steroids Mifepristone
What is mifepristone? How does mifepristone work?
Mifepristone is a pill that terminates an early pregnancy. The U.S. Food and Drug Administration (FDA) approved mifepristone for use within 49 days from the start of a woman's last menstrual period. Evidence suggests it may be used safely up to 63 days or 9 weeks after the first day of a woman's last period. Mifepristone ends a pregnancy by blocking the receptors of the hormone progesterone, causing the lining of the uterine walls to shed similar to during one's menstrual cycle. It also increases prostaglandin levels and dilates the cervix, facilitating abortion. When followed by administration of misoprostol, a prostaglandin that induces uterine contractions, mifepristone ends an unwanted pregnancy approximately 97% of the time.[3] In the instance mifepristone does not work, as determined by an ultrasound during a follow up visit, a woman will need to have a surgical abortion.
How does a woman take mifepristone to terminate a pregnancy?
Under the FDA approved regimen for Mifeprex (mifepristone) the following three steps are taken:
Step One: A woman first takes 600 mg of mifepristone (three 200-mg pills by mouth) given to her by her medical provider. This first administration typically occurs her doctor's office, a hospital, or a clinic. All women should be offered analgesics for pain management. The risk of infection following a medical abortion is low, therefore use of antibiotics as part of the medical abortion regimen are not necessary.
Step Two: A woman takes 400 micrograms (two 200 microgram pills) of misoprostol up to two days later. She and her medical provider will plan the location and timing of this dose, including administering it at home. It is recommended to wear a sanitary napkin at this time to help a woman keep track of her bleeding. Bleeding is usually the heaviest 4-6 hours after taking misoprostol. For more information on misoprostol click: here
Step Three: Approximately 14 days after taking the mifepristone, a woman will return to her healthcare provider for a follow-up visit, to determine with an ultrasound whether the pregnancy has been terminated. A woman may also experience light bleeding or spotting for up to four weeks after taking mifepristone and misoprostol.
Who should not use mifepristone?
Mifepristone should not be used if a woman:
is more than 63 days, or nine weeks, pregnant.
currently has an IUD. She will need to have it removed before having a medication abortion.
has an ectopic pregnancy (one outside of the uterus, usually in the fallopian tubes)
has a molar pregnancy (one in which the placenta develops abnormally).
has severe adrenal gland, heart, kidney, or liver problems.
has a history of allergy to mifepristone or other prostaglandins.
has been diagnosed with a bleeding disorders or is undergoing blood-thinning therapy.
is not willing to have a surgical abortion in the unlikely case that the medicines do not end her pregnancy.
cannot come to follow-up appointments.
does not have access to a telephone, transportation, and backup medical care.