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Emergency contraception.

Hang-Wun Raymond Li1, Sue Seen Tsing Lo2, Pak-Chung Ho1

  • 1Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong; The Family Planning Association of Hong Kong, Hong Kong.

Best Practice & Research. Clinical Obstetrics & Gynaecology
|June 6, 2014
PubMed
Summary
This summary is machine-generated.

Emergency contraception (EC) offers safe backup options like copper IUDs or hormonal pills. Newer options like ulipristal acetate provide wider use windows for effective pregnancy prevention.

Keywords:
copper intrauterine deviceemergency contraceptionlevonorgestrelmifepristoneulipristal acetate

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Area of Science:

  • Reproductive Health
  • Pharmacology
  • Contraception

Background:

  • Emergency contraception (EC) serves as a crucial backup method following unprotected intercourse or contraceptive failure.
  • Available EC options include the copper intrauterine device (IUD) and hormonal methods.

Purpose of the Study:

  • To review the development and current options for emergency contraception.
  • To evaluate the efficacy and safety of various EC methods.

Main Methods:

  • Literature review summarizing the evolution and current status of emergency contraception.
  • Analysis of available data on the effectiveness and safety profiles of different EC methods.

Main Results:

  • The copper IUD is the most effective EC method.
  • Levonorgestrel (1.5 mg) is a first-line hormonal EC, effective within 72 hours.
  • Oral anti-progestogens like mifepristone and ulipristal acetate offer improved efficacy and a broader 120-hour window.

Conclusions:

  • Education on EC is essential in contraceptive counseling.
  • Increased accessibility, such as over-the-counter or advance provision, can facilitate timely use without promoting misuse.
  • Anti-progestogens represent promising alternatives with enhanced efficacy and extended usability.