« Previous
Next »
Contraception
Volume 75, Issue 2
, Pages 112-118
, February 2007
Effectiveness of levonorgestrel emergency contraception given before or after ovulation — a pilot study
References
- . Postcoital contraception with 0.75 mg d-norgestrel (Postinor). Ther Hung. 1981;29:31–34
- Low dose mifepristone and two regimens of levonorgestrel for emergency contraception: a WHO multicentre randomised trial. Lancet. 2002;360:1803–1810
- . Mechanism of action of emergency contraceptive pills. Contraception. 2006;74:87–89
- Mechanism of action of hormonal preparations used for emergency contraception: a review of the literature. Contraception. 2001;63:111–121
- . Mechanisms of action of emergency contraception. Steroids. 2003;68:1095–1098
- On the mechanisms of action of short-term levonorgestrel administration in emergency contraception. Contraception. 2001;64:227–234
- Emergency contraception with mifepristone and levonorgestrel: mechanism of action. Obstet Gynecol. 2002;100:65–71
- . Postcoital treatment with levonorgestrel does not disrupt postfertilization events in the rat. Contraception. 2003;67:415–419
- Post-coital administration of levonorgestrel does not interfere with post-fertilization events in the New-World monkey Cebus apella. Hum Reprod. 2004;19:1352–1356
- . Ethinyl estradiol and conjugated estrogens as postcoital contraceptives. JAMA. 1980;244:1336–1339
- . Normal variation in the length of the luteal phase of the menstrual cycle: identification of the short luteal phase. Br J Obstet Gynaecol. 1984;91:685–689
- Mifepristone (RU 486) compared with high-dose estrogen and progestogen for emergency postcoital contraception. N Engl J Med. 1992;327:1041–1044
- Safety and effectiveness of hormonal postcoital contraception: a prospective study. Eur J Contracept Reprod Health Care. 1999;4:27–33
- . Estimating the efficacy of emergency contraception — how reliable are the data?. Contraception. 2002;66:19–22
- . Randomised controlled trial of levonorgestrel versus the Yuzpe regimen of combined oral contraceptives for emergency contraception. Lancet. 1998;352:428–433
- . Immulite reproductive hormone assays: multicenter reference range data. Los Angeles: Diagnostic Products Corp; 2000;Document; No. ZB157-D
- . Timing of sexual intercourse in relation to ovulation. Effects on the probability of conception, survival of the pregnancy, and sex of the baby. N Engl J Med. 1995;333:1517–1521
- . Postovulatory ageing of the human oocyte and embryo failure. Hum Reprod. 1998;13:394–397
- . New estimates of the effectiveness of the Yuzpe regimen of emergency contraception. Contraception. 1998;57:363–369
- . The risk of conception on different days of the menstrual cycle. Popul Stud. 1969;23:455–461
- . Fecundability, coital frequency and the viability of ova. Popul Stud. 1980;34:397–400
- . Using the ratio of urinary oestrogen and progesterone metabolites to estimate day of ovulation. Stat Med. 1991;10:255–266
- Likelihood of conception with a single act of intercourse: providing benchmark rates for assessment of post-coital contraceptives. Contraception. 2001;63:211–215
- . Plasma steroid and gonadotrophin profiles in ovulatory but infertile women. Clin Endocrinol. 1978;8:241–255
- . Hormonal profile of the cycle in 68 normally menstruating women. Acta Endocrinol. 1980;94:89–98
- . Effectiveness of the Yuzpe regimen of emergency contraception by cycle day of intercourse: implications for mechanism of action. Contraception. 2003;67:167–171
- . A prospective randomized comparison of levonorgestrel with the Yuzpe regimen in post-coital contraception. Hum Reprod. 1993;8:389–392
- A randomized trial of mifepristone (10 mg) and levonorgestrel for emergency contraception. Obstet Gynecol. 2004;104:1307–1313
☆ Funding for this study came from The Family Planning Foundation, FPA Health, Sydney.
PII: S0010-7824(06)00361-1
doi: 10.1016/j.contraception.2006.08.015
© 2007 Elsevier Inc. All rights reserved.
« Previous
Next »
Contraception
Volume 75, Issue 2
, Pages 112-118
, February 2007
