Background Emergency contraception (EC) is using a drug or copper intrauterine device
(Cu‐IUD) to prevent pregnancy shortly after unprotected intercourse. Several interventions …

Summary The 2016 US Selected Practice Recommendations for Contraceptive Use (US
SPR) addresses a select group of common, yet sometimes controversial or complex, issues …

Adverse effects of hormonal contraceptives usually diminish with continued use of the same
method. Often, physicians only need to reassure patients that these symptoms will likely …

Emergency contraception provides women with a last chance to prevent unintended
pregnancy after sex. In the United States, available options for emergency contraception are …

The constitutive androstane receptor (CAR, NR1I3) is a key regulator of xenobiotic and
endobiotic metabolism. The ligand-binding domains of murine (m) and human (h) CAR are …

Emergency contraception is used to prevent pregnancy after a coital act not adequately
protected by a regular method of contraception. In contrast to early medical abortion …

Emergency contraception is an underused therapeutic option for women in the event of
unprotected sexual intercourse. Available postcoital contraceptives include emergency …

Abstract The World Health Organization (WHO) and the US Centers for Disease Control and
Prevention (CDC) provide recommendations for use of emergency contraceptive pills …

Summary The 2024 US Selected Practice Recommendations for Contraceptive Use (US
SPR) addresses a selected group of common, yet sometimes complex, issues regarding …

Despite significant declines over the past 2 decades, the United States continues to
experience birth rates among teenagers that are significantly higher than other high-income …