| De pil is betrouwbaar bij correct gebruik | U heeft geen noodanticonceptie nodig als u de afgelopen dagen onbeschermde seks had |
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| De noodpil is minder betrouwbaar dan gewone anticonceptiemiddelen | New York: International Consortium for Emergency Contraception ICEC |
| Ulipristal, also known as CDB-2914, has been studied as an emergency contraceptive pill… In 2009, European regulatory approval was granted for a 30-mg tablet of ulipristal under the brand name of EllaOne as an emergency contraceptive pill for use up to 5 days after unprotected intercourse | , Stewart, Felicia; Guest, Felicia; Josephs, Nancy; Dale, Janet 1982 |
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| However, women should also be informed that the best available evidence indicates that ECPs prevent pregnancy by mechanisms that do not involve interference with post-fertilization events | Samen met een dokter, kunt u de pil vinden die het best bij u past |
The precise mode of action of Levonelle One Step is not known.
| In 2002, a judicial review ruled that pregnancy begins at implantation, not fertilisation | De meest voorkomende bijwerkingen van de minipil zijn onregelmatige menstruaties, vermindering, of stoppen van de menstruatie |
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| The primary mechanism of action is to stop or disrupt ovulation; LNG ECP use may also prevent the sperm and egg from meeting | California Board of Pharmacy December 22, 2004 |
Review of the evidence suggests that LNG ECPs cannot prevent implantation of a fertilized egg.
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