how effective is the morning after pill within 12 hours?
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Levonorgestrel is most effective when taken within 12 hours of unprotected sex, although it can be effective for up to 72 hours after sex. You should bear in mind, however, that this effectiveness decreases over time. Levonorgestrel is thought to prevent: up to 95% of pregnancies if taken within 24 hours.
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The Plan B pill works best when you take it within 3 days after unprotected sex.
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You can take Plan B, My Way, and other levonorgestrel morning-after pills up to 5 days after unprotected sex. But the longer you wait to take it, the less effective it is. These types of morning-after pills may not work if you weigh 155 pounds or more.
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If taken within 72 hours of unprotected sex, Plan B is 89 percent effective at preventing pregnancy, according to Planned Parenthood. The drug is less effective after three days, but can work up to five days after unprotected sex.
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Yes. You can take emergency contraception pills (the morning-after pill) at any time of day for up to 5 days after unprotected sex. For emergency contraception pills like Plan B One-Step, Next Choice, Next Choice One Dose, and Levonorgestrel, the sooner you take them more effective they are.
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He says: "Acting quickly is key to ensuring the emergency contraceptive you use works as well as it can. "Levonelle can be taken within 72 hours (three days) of unprotected sex; for EllaOne the window is a little longer at 120 hours (five days). "But generally, the sooner you take it, the more likely it is to work.
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Read the instructions that come in the package for more information. You can take these morning-after pills up to 5 days after unprotected sex, but they work much better if you take them during the first 3 days. Take a pregnancy test if you haven't gotten your period within 3 weeks after taking the morning-after pill.
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Plan B One-Step and generic levonorgestrel work best if you take them within 3 days after sex, but they may work up to 5 days after sex. Ella and the IUD can work up to 5 days after sex. However, those are only averages.
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How does the plan B® morning-after pill work? plan B® comes in a one-pill dose. If taken within 72 hours (3 days) and preferably within 12 hours after a contraceptive accident or unprotected sex, it can prevent pregnancy by doing one of three things: Temporarily stops the release of an egg from the ovary.
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Yes, it's often called the "morning after" pill. But really, the sooner you take it, the more effective it will be. Studies show that if you take emergency contraception within 72 hours of sex, you have only a 1% to 2% chance of getting pregnant.
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Share This You should take it as soon as possible. Emergency contraception (AKA the morning-after pill) works up to five days (120 hours) after unprotected sex. But the sooner you take it, the better it works. You don't need to wait until the next day, and it definitely doesn't have to be taken in the morning, either.
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Emergency Contraception (Morning After Pill) Important Notes: Emergency contraception may prevent pregnancy for three days (72 hours) and sometimes five days (120 hours) after unprotected sex. Take EC as soon as possible after unprotected sex.
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"Plan B is FDA approved for use up to 72 hours after unprotected sex. It can be used up to 120 hours after, but the further out from intercourse, the less effective it will become," says Bender. So, for max protection, take the pill as quickly as you can get it.
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How Effective Is Levonorgestrel? If you take the pill within 72 hours after you've had unprotected sex, levonorgestrel can reduce the risk of pregnancy by up to 87% if taken as directed. If you take Plan B One-Step within 24 hours, it is much more effective.
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A 1.5mg single dose emergency contraceptive pill (ECP) that can be used up to 72 hours (three days) after unprotected sex and is available from pharmacies as an over the counter medication (i.e. no prescription is required). This should be taken as soon as possible after unprotected sex or contraceptive failure.
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Plan B can help prevent 7 out of 8 pregnancies if you take it within 72 hours (3 days) of having unprotected sex or experiencing a contraceptive failure. Plan B becomes less effective as more time passes after the first 72 hours since these events.
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95% of pregnancies are prevented if the morning after pill is taken within the first 24 hours, 85% if taken from 24–48 hours and 58% if taken from 48–72 hours after sex. The morning after pill is not supposed to be taken regularly.