Levonorgestrel Now and Again in 12 Hours
Reviewed by our clinical team
Many people question 'how effective is the morning after pill?', but the answer largely depends on one thing: how before long later unprotected sexual activity the pill is taken. Beyond this, there can exist some differences depending on the type you utilize. This commodity examines the two most widely used morning time later pills – Levonorgestrel (generic Levonelle) and ellaOne – as well as the emergency coil, or IUD.
What is ellaOne?
EllaOne is the most effective morning after pill (although the emergency coil is the most effective class of emergency contraception). It contains ulipristal acetate, a chemic that prevents pregnancy.
How does ellaOne work?
Ulipristal acetate is the active ingredient in ellaOne. This ingredient is a chemic that prevents or delays your ovaries from releasing an egg (ovulating), therefore decreasing the chances of sperm coming into ontact with an egg and fertilising it.
EllaOne Effectiveness
EllaOne should exist taken as soon equally possible after unprotected sex to maximise its effectiveness. However, ellaOne has a longer window of use than Levonorgestrel. EllaOne has to exist taken within 5 days (120 hours) of unprotected sex – allowing 48 hours actress than Levonorgestrel.
EllaOne is taken as a unmarried tablet. Whereas the effectiveness of Levonorgestrel starts to subtract after 12 hours, ellaOne is thought to remain upward to 98% effective throughout the five twenty-four hour period window. ellaOne is not recommended for use more than once in a menstrual cycle.
Things to consider
Potential side effects are very rare. The most likely are irregular bleeding, headache, nausea and stomach pain, but these side-effects are rarely severe. Don't accept ellaOne if y'all believe you lot are already pregnant and bear in listen that ellaOne may collaborate with certain medicines. Consult the medical instructions within the packet or speak with your GP if you have major concerns.
If you lot vomit inside three hours of taking ellaOne you must take some other tablet as before long as possible. Recurrent vomiting probably means your body is rejecting the treatment. You could endeavor Levonorgestrel provided you are inside 72 hours of sexual intercourse, although Levonorgestrel'due south decreasing effectiveness means the IUD is probably the better selection.
What is Levonorgestrel/Levonelle?
Levonorgestrel is the about normally used morning after pill, although information technology is sometimes called its branded proper noun Levonelle. Although less effective than ellaOne, it has been around longer and costs less. Levonorgestrel is a synthetic hormone that prevents pregnancy.
How does Levonorgestrel work?
The active ingredient in Levonorgestrel or Levonelle is levonorgestrel. This a synthetic hormone which works to foreclose pregnancy by stopping the ovaries from releasing an egg and as well stopping sperm fertilising an egg if it had already been released.
Levonorgestrel/Levonelle Effectiveness
Levonorgestrel is nearly constructive when taken within 12 hours of unprotected sex, although it tin be effective for up to 72 hours after sex. Yous should deport in mind, however, that this effectiveness decreases over fourth dimension.
Levonorgestrel is thought to prevent:
- up to 95% of pregnancies if taken within 24 hours
- upwards to 85% if taken inside 25-48 hours
- up to 58% if taken within 49-72 hours
For this reason, taking Levonorgestrel three days after unprotected sex may non go out y'all equally well-protected equally yous hoped.
Things to consider
Levonorgestrel comes as a tablet, taken one time only. However, you can have Levonorgestrel once more during the same menstrual cycle if y'all require emergency contraception on some other occasion. Levonorgestrel should not disrupt any contraception such as the combined pill. In contrast, ellaOne is not recommended o be used more than than once in a menstual cycle. You should never take Levonorgestrel and ellaOne within the same menstrual cycle equally each other.
Nigh women experience no side effects after taking Levonorgestrel. Should side effects occur, the most mutual are irregular haemorrhage, headache, nausea and stomach pain. Certain medical conditions make Levonorgestrel unsafe to have. If you lot order through our site, ane of our doctors will check that you lot are eligible beforehand.
If you're sick within 3 hours taking Levonorgestrel, you volition demand to take some other tablet as soon as possible. If vomiting recurs and so your body has probably rejected the treatment. Yous should seek another form of emergency contraception – mostly likely the IUD coil (see below).
The emergency IUD, or coil
The IUD is the about constructive class of emergency contraception. It'south is a small T-shaped device made from plastic and copper that is inserted into the uterus to prevent pregnancy. The coil stops the egg and sperm from surviving in the womb or fallopian tubes. It is commonly used equally a form of long-term contraception. Nevertheless the scroll is too a very effective emergency contraception – indeed more than so than either Levonorgestrel or ellaOne. You can get the coil fitted within v days of unprotected sex activity and it will be 99.nine% constructive.
To have the scroll fitted you must visit your GP or local sexual wellness clinic. There you will take an internal exam to discover the size and position of your womb. The insertion process takes between 15 to 20 minutes. The coil can be an effective class of contraception for five to ten years, depending on the version used.
However, if you desire to remove the coil the procedure can exist done at any time by a trained doctor or nurse. One time the curl is removed your fertility will return to normal.
Some women observe the coil causes vaginal bleeding and pain. Most, yet, experience no discomfort. Periods tin be heavier although this tends to clear after a few months. The coil doesn't prevent sexually transmitted infections so you lot will still demand to use a condom during sex activity if you aren't certain that your partner is STI-free.
The coil should non be fitted if you have:
- an untreated pelvic infection or STI
- unexplained vaginal bleeding
- certain abnormalities of the neck or womb
The doctor or nurse plumbing fixtures the coil will examine you beforehand to ensure the coil is appropriate for you. For more than information, visit your GP or local sexual wellness clinic.
Does emergency contraception protect confronting STIs?
No, not at all. If you accept had unprotected sexual activity and are worried that you might accept an STI and then you should visit your local sexual wellness clinic for testing. Alternatively, LloydsPharmacy Online Md provides communication, STI tests and a range of STI treatments.
Y'all should also remember that the morning afterward pill isn't a suitable alternative to regular contraception. It is designed for 1-off use. If you do not want to utilize long-term hormonal contraception, barrier methods such every bit condoms could be the answer. They are far cheaper than using emergency contraception regularly, and offer constructive protection against sexually transmitted infections.
Can y'all get significant later on taking the morning after pill?
ellaOne and Levonorgestrel are nearly constructive at preventing pregnancy the sooner they are taken after unprotected sex. A 2022 review it is estimated that 98-99% of women who have ellaOne after unprotected sexual practice will non become meaning. It is estimated that 97.four-99.4% of women will non become pregnant afterwards taking Levonorgestrel.
How effective is the morning after pill when ovulating?
Both types of morning after pill, Levonorgestrel and ellaOne are constructive only if taken before the release of an egg from the ovary (ovulation). Even so, when compared with Levonorgestrel, ellaOne has been shown to continue being effective later in the menstrual cycle.
How long does the morning time after pill stay effective?
The morning after pill is only effective after unprotected sexual practice. If you accept unprotected sex at any time afterward taking Levonorgestrel or ellaOne, you tin can become pregnant.
Neither course of morning after pill is intended to exist used as a regular form of contraception. But you tin utilize emergency contraception more once in a menstrual cycle if you need to.
How exercise I know that the morning after pill has worked? When should I take a pregnancy test?
If your menstruum is more than than 7 days late; if it is unusually light or unusually heavy; or if you lot experience symptoms such every bit abdominal (stomach) pain, breast tenderness, airsickness or nausea, you lot may exist pregnant.
Can you have the morning subsequently pill twice in a week?
You can have the morn after pill more than in one case in a menstrual bike, if yous need to. Nonetheless it is worth begetting in mind that the morning after pill shouldn't be used as a regular form of contraception.
References
https://www.nhs.uk/weather/contraception/how-effective-emergency-contraception/
https://www.tht.org.uk/hiv-and-sexual-health/sexual-wellness/improving-your-sexual-wellness/contraception/emergency
https://111.wales.nhs.united kingdom/Emergencycontraceptivepill/
https://www.medicines.org.united kingdom/emc/product/7308/smpc#PRODUCTINFO
Source: https://onlinedoctor.lloydspharmacy.com/uk/contraception-advice/how-effective-is-the-morning-after-pill
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