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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.
Oral contraceptives, abbreviated OCPs, also known as birth control pills, are medications taken by mouth for the purpose of birth control. The introduction of the birth control pill ("the Pill") in 1960 revolutionized the options for contraception, sparking vibrant discussion in the scientific and social science literature and in the media.
A number of options exist, including high dose birth control pills, levonorgestrel, mifepristone, ulipristal and IUDs. [118] All methods have minimal side effects. [118] Providing emergency contraceptive pills to women in advance of sexual activity does not affect rates of sexually transmitted infections, condom use, pregnancy rates, or sexual ...
Emergency contraception helps prevent pregnancy up to five days after having unprotected sex. Here's what you need to know about it.
Typically, the Yuzpe regimen uses several doses of combined oral contraceptive pills. It may be preferred in locations where other forms of emergency contraception are unavailable or accessing emergency contraception carries a societal stigma. In these places, people often self-administer combined oral contraceptives as emergency contraception. [1]
Levonorgestrel-only emergency contraceptive pills are reported to have an 89% effectiveness rate if taken within the recommended 72 hours after sex. [42] The efficacy of the drug decreases by 50% for each 12-hour delay in taking the dose after the emergency contraceptive regimen has been started.
Mifepristone as a regular contraceptive at 2 mg daily prevents ovulation (1 mg daily does not). A single preovulatory 10-mg dose of mifepristone delays ovulation by three to four days and is as effective an emergency contraceptive as a single 1.5-mg dose of the progestin levonorgestrel. [55]
CPA/EE-containing birth control pills were developed by 1975 [20] [21] and were first introduced for medical use in 1978. [22] They originally contained 50 μg EE (Diane); subsequently, the EE dosage was decreased to 35 μg in a new "low-dose" preparation in 1986 (Diane-35).