Knowra Emergency contraception Emergency contraception Methods used after unprotected sex or contraceptive failure to reduce the chance of pregnancy. Options include emergency contraceptive pills and the copper intrauterine device.
Levonorgestrel : A synthetic progestin used in contraceptive pills and in emergency contraception. Levonorgestrel emergency pills mainly delay ovulation and work best when taken promptly.
Emergency contraception timing : The interval after sex during which an emergency contraception method can reduce pregnancy risk. Pills should be taken as soon as possible; ulipristal and copper IUDs can be used within five days.
Medication abortion : The use of medicines, usually mifepristone and misoprostol, to end an established pregnancy. Emergency contraception prevents pregnancy; medication abortion ends one that has already begun.
Contraceptive failure : A pregnancy risk that occurs when a contraceptive method is not used or does not work as intended. Method failure, such as a broken condom or missed pills, is a common reason for emergency use.
Ulipristal acetate : A selective progesterone receptor modulator used for emergency contraception and uterine fibroids. It can delay ovulation later in the cycle than levonorgestrel can.
Body mass index and emergency contraception : Research on whether body weight affects the effectiveness of emergency contraceptive methods. Evidence suggests oral methods may be less effective at higher body weights, while a copper IUD remains effective.
Regular contraception : Methods used before or during sex to reduce the chance of pregnancy over time. Emergency methods address a recent risk and are not substitutes for routine contraception.
Access to emergency contraception : The practical and legal availability of emergency contraceptive methods to people who need them. Cost, prescription rules, pharmacy supply, and timely care can determine whether treatment is possible.
Copper IUD : An intrauterine device that releases copper ions and provides long-acting contraception. Inserted after sex, it is the most effective established emergency contraception method.
Drug interactions : Changes in a medicine’s effects caused by another drug, supplement, or food. Some enzyme-inducing medicines can reduce the effectiveness of oral emergency contraception.
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