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Emergency contraception (EC) is a birth control measure, used after sexual intercourse to prevent pregnancy.. There are different forms of EC. Emergency contraceptive pills (ECPs), sometimes simply referred to as emergency contraceptives (ECs), or the morning-after pill, are medications intended to disrupt or delay ovulation or fertilization, which are necessary for pregnancy.
Emergency birth control can prevent pregnancy if taken within 72 to 120 hours after unprotected sex. [11] [12] Some argue not having sex is also a form of birth control, but abstinence-only sex education may increase teenage pregnancies if offered without birth control education, due to non-compliance. [13] [14]
Levonorgestrel is a hormonal medication which is used in a number of birth control methods. [3] [7] It is combined with an estrogen to make combination birth control pills. [8]As an emergency birth control, sold under the brand names Plan B One-Step and Julie, among others, it is useful within 72 hours of unprotected sex.
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The first pill is taken 72 hours after unprotected sex and the second pill is taken 12 hours after the first. [41] The Yuzpe regimen is often used in areas where dedicated EC methods are unavailable or where EC is not accepted. [46] The most effective form of EC is the insertion of a Cu-IUD within 5 days of unprotected sex. [41]
The cap remains in the vagina for a minimum of 6 [45] [46] to 8 [1] [47] hours after the last intravaginal ejaculation. It is recommended the cap be removed within 72 hours (within 48 hours is recommended in the U.S.). [1] Other than the disposable Oves cap, cervical caps can be washed and stored for reuse. [4]