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Article: Emergency contraception: Methods and efficacy

TitleEmergency contraception: Methods and efficacy
Authors
Issue Date2000
PublisherLippincott Williams & Wilkins. The Journal's web site is located at http://www.co-obgyn.com
Citation
Current Opinion In Obstetrics And Gynecology, 2000, v. 12 n. 3, p. 175-179 How to Cite?
AbstractA number of effective and safe methods for emergency contraception are now available. High doses of oestrogens, although effective, are seldom used nowadays because of the high incidence of nausea and vomiting, and the need for administration for 5 days. The Yuzpe regimen, consisting of administration of two doses of combined oral contraceptive pills with a 12-h interval, can prevent more than 74% of expected pregnancies, but the incidence of side effects, mainly gastrointestinal side effects, is high. Levonorgestrel and mifepristone are more effective than the Yuzpe regimen and have a lower incidence of side effects. They can prevent about 85% of pregnancies. The efficacy of both the Yuzpe regimen and levonorgestrel decreased with increase in the intercourse-treatment interval. The dose of mifepristone can be reduced to 10 mg without loss of efficacy. Both levonorgestrel or mifepristone are not yet widely available, and the Yuzpe regimen remains the only hormonal method in many countries. The postcoital insertion of an intrauterine contraceptive device is also a highly effective method, which can prevent over 90% of pregnancies. © 2000 Lippincott Williams & Wilkins.
Persistent Identifierhttp://hdl.handle.net/10722/87424
ISSN
2015 Impact Factor: 2.134
2015 SCImago Journal Rankings: 0.905
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHo, PCen_HK
dc.date.accessioned2010-09-06T09:29:29Z-
dc.date.available2010-09-06T09:29:29Z-
dc.date.issued2000en_HK
dc.identifier.citationCurrent Opinion In Obstetrics And Gynecology, 2000, v. 12 n. 3, p. 175-179en_HK
dc.identifier.issn1040-872Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/87424-
dc.description.abstractA number of effective and safe methods for emergency contraception are now available. High doses of oestrogens, although effective, are seldom used nowadays because of the high incidence of nausea and vomiting, and the need for administration for 5 days. The Yuzpe regimen, consisting of administration of two doses of combined oral contraceptive pills with a 12-h interval, can prevent more than 74% of expected pregnancies, but the incidence of side effects, mainly gastrointestinal side effects, is high. Levonorgestrel and mifepristone are more effective than the Yuzpe regimen and have a lower incidence of side effects. They can prevent about 85% of pregnancies. The efficacy of both the Yuzpe regimen and levonorgestrel decreased with increase in the intercourse-treatment interval. The dose of mifepristone can be reduced to 10 mg without loss of efficacy. Both levonorgestrel or mifepristone are not yet widely available, and the Yuzpe regimen remains the only hormonal method in many countries. The postcoital insertion of an intrauterine contraceptive device is also a highly effective method, which can prevent over 90% of pregnancies. © 2000 Lippincott Williams & Wilkins.en_HK
dc.languageengen_HK
dc.publisherLippincott Williams & Wilkins. The Journal's web site is located at http://www.co-obgyn.comen_HK
dc.relation.ispartofCurrent Opinion in Obstetrics and Gynecologyen_HK
dc.rightsCurrent Opinion in Obstetrics & Gynecology. Copyright © Lippincott Williams & Wilkins.en_HK
dc.titleEmergency contraception: Methods and efficacyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1040-872X&volume=12&spage=175&epage=179&date=2000&atitle=Emergency+contraception:+methods+and+efficacyen_HK
dc.identifier.emailHo, PC:pcho@hku.hken_HK
dc.identifier.authorityHo, PC=rp00325en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1097/00001703-200006000-00003en_HK
dc.identifier.pmid10873117-
dc.identifier.scopuseid_2-s2.0-0034436022en_HK
dc.identifier.hkuros49684en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034436022&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume12en_HK
dc.identifier.issue3en_HK
dc.identifier.spage175en_HK
dc.identifier.epage179en_HK
dc.identifier.isiWOS:000168807000003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHo, PC=7402211440en_HK

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