how long does plan b effects last?
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Plan B contains three times more levonorgestrel than a regular birth control pill. As a result, this large, concentrated dose can cause side effects like fatigue, nausea, and pelvic pain. Side effects of taking Plan B shouldn't last more than a few days.
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"Most side-effects will go away within a few days, and there are no serious long-term effects from taking the morning after pill. Side-effects are likely to be the same regardless of which brand of pill you take." Some women may also experience temporary breast tenderness and dizziness.
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HOW LONG IS PLAN B® EFFECTIVE? The sooner you take plan B®, the more effective it is. It can prevent pregnancy if taken within 72 hours and preferably within 12 hours of unprotected sex. If you take it within 24 hours of unprotected sex, it is 95% effective.
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Emergency contraceptive pills (ECP, 'Morning-after pill') There are two types of morning after pill: Levonelle® and ellaOne®. Levonelle can be taken up to 72 hours (3 days) after unprotected sex. ellaOne can be used up to 120 hours (5 days) after unprotected sex.
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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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The morning after pills effectiveness depends on which method is used. Levonogestrel based pills, like Plan-B, are up to 89% effective when taken less than 3 days after unprotected sex. It will continue to work up to 5 days after protected sex, but it's less effective as time passes.
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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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Do I have to wait until the next day? 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.
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Side effects of the morning-after pill, which typically last only a few days, might include: Nausea or vomiting. Dizziness. Fatigue.
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Plan B, My Way, Take Action, and other levonorgestrel morning-after pills work best when you take them quickly after unprotected sex. They'll work best up to 3 days (72 hours) after unprotected sex. You can take these up to 5 days (120 hours) after sex, but they don't work nearly as well by day 5.
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The sooner you take plan B®, the more effective it is. It can prevent pregnancy if taken within 72 hours and preferably within 12 hours of unprotected sex. If you take it within 24 hours of unprotected sex, it is 95% effective. If you take it between 48 and 72 hours of unprotected sex, the efficacy rate is 61%.
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Plan B. The Plan B package instructions state that you should take 1 white pill within 72 hours after unprotected sex and 1 more white pill 12 hours later. Each dose contains 0.75 mg of levonorgestrel. The two pills are identical; it does not matter which pill you take first.
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You don't take it soon enough. Morning-after pills like Plan B and Next Choice are effective if you take them within five days of unprotected sex. The major caveat here is that they work best when taken within 72 hours, then the efficacy starts dropping.
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Plan B has a 95% chance of preventing pregnancy if you take it within 24 hours. If you take it within 72 hours, you have up to an 89% chance.
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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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Side effects of the morning-after pill It's very unlikely that you will have any severe reactions to Plan B®. You may have some temporary side effects that will usually pass within 24 hours. Like all medications, Plan B® can cause some side effects: Nausea: ~14% to 23% of women.
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Plan B® is effective Although few women experience vomiting with Plan B®, if you vomit within two hours of taking Plan B®, you might not have absorbed the medication contained in the pill. Call your healthcare professional, as you might need another dose.