title: Emergency contraception.
abstract: Emergency contraception is increasing in use and has become a universal standard of care in the United States. This article reviews available forms of emergency contraception, their indications, contraindications, adverse effects and efficacy at preventing pregnancy. This article describes the mechanism of action of different forms of emergency contraception and provides recommendations on when to start or restart an ongoing method of contraceptive after emergency contraception use. Literature on the impact of the advance provision of emergency contraception on contracepting behaviors is reviewed, and behavior change counseling related to emergency contraception is described.
authors.affiliation: Division of Adolescent Medicine, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, 3705 5th Avenue, Pittsburgh, PA 15213, USA.
authors.forename: Lee Ann E
authors.initials: LA
authors.lastname: Conard
authors.forename: Melanie A
authors.initials: MA
authors.lastname: Gold
mesh_terms: D000293:Adolescent; D003267:Contraception / Q000379:methods; D003276:Contraceptives, Oral / Q000008:administration & dosage* / Q000009:adverse effects; D003281:Contraceptives, Postcoital / Q000008:administration & dosage* / Q000009:adverse effects; D004630:Emergencies; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007435:Intrauterine Devices, Copper; D015735:Mifepristone / Q000008:administration & dosage* / Q000009:adverse effects; D011247:Pregnancy; D011253:Pregnancy in Adolescence / Q000517:prevention & control*; D011372:Progestins / Q000008:administration & dosage* / Q000009:adverse effects; D012307:Risk Factors; D016896:Treatment Outcome
chemical_list: D003276:Contraceptives, Oral; D003281:Contraceptives, Postcoital; D011372:Progestins; D015735:Mifepristone