The most effective emergency contraception pill currently available in the UK is ellaOne (ulipristal acetate). It maintains its effectiveness more consistently across the full five-day window after unprotected sex than levonorgestrel-based options. Levonorgestrel pills such as Levonelle are also effective, but work best when taken as soon as possible within 72 hours. For those who need the highest possible level of protection, the copper IUD is more effective than any pill. At G.M. Graham Pharmacies in Essex, we provide fast, confidential access to emergency contraception through our women’s health clinic with no appointment needed.
Key Takeaways
- EllaOne (ulipristal acetate) is considered the most effective emergency contraception pill available in the UK.
- EllaOne can be taken up to 120 hours (five days) after unprotected sex and maintains its effectiveness more consistently across that window.
- Levonorgestrel pills such as Levonelle are effective within 72 hours and are most effective when taken as soon as possible.
- Current FSRH guidance advises that body weight may reduce the effectiveness of levonorgestrel. EllaOne or a copper IUD should be considered as alternatives.
- Neither pill protects against sexually transmitted infections. Testing may be appropriate if there has been a risk of exposure.
- The copper IUD is the most effective form of emergency contraception available and can be fitted up to five days after unprotected sex.
How Does the Emergency Contraception Pill Work?
The emergency contraception pill is a hormonal medication taken after unprotected sex. It is designed to reduce the risk of unintended pregnancy. It is not the same as the abortion pill and does not end an established pregnancy.
It works by delaying or preventing ovulation. This stops fertilisation from occurring. There are two main types available in the UK: levonorgestrel and ulipristal acetate (ellaOne).
Both types are available from pharmacies without a prescription. You do not need to see a GP. At G.M. Graham Pharmacies in Essex, our team can supply the most appropriate option and answer any questions you have.
It is important to understand that neither pill will work if ovulation has already occurred. This is why acting as soon as possible after unprotected sex matters so much. The sooner you take it, the greater the chance it will be effective.
Emergency contraception is widely available and nothing to feel embarrassed about. Millions of people use it every year across the UK. Pharmacists are trained to provide it quickly, discreetly, and without judgment.
EllaOne vs Levonorgestrel: Which is More Effective?
EllaOne (ulipristal acetate) is generally considered the more effective of the two emergency contraception pills. It works by blocking the effects of progesterone in the body. This delays or inhibits ovulation more reliably than levonorgestrel.
Levonorgestrel is a synthetic progestogen. It also works by delaying ovulation. However, its effectiveness decreases more steeply over time than ellaOne.
Current evidence suggests that ellaOne is more effective than levonorgestrel across the full five-day window. This difference is most significant between 72 and 120 hours after unprotected sex. For this reason, ellaOne is the preferred option when more than 24 hours have passed.
Levonorgestrel remains a valid and widely used option. It is most effective when taken within the first 24 hours after unprotected sex. Acting quickly is the most important factor when choosing levonorgestrel.
Both pills are taken as a single dose. Neither requires a course of treatment. This makes them straightforward to use, even in a stressful situation.
If you are unsure which pill is most appropriate for you, a pharmacist can help. They will consider how much time has passed since unprotected sex. They will also take into account any other relevant factors, such as your body weight and current medications.
Comparing Emergency Contraception Pill Options
The bullet points below provide a quick overview of the main emergency contraception options available in the UK. They cover the main differences in active ingredient, time window, effectiveness, and availability.
EllaOne (ulipristal acetate 30mg)
- Time window: up to 120 hours (five days) after unprotected sex
- Effectiveness: more consistent across the full five-day window than levonorgestrel
- Available from a pharmacy without a prescription
Levonelle/Ezinelle (levonorgestrel 1500mcg)
- Time window: up to 72 hours (three days) after unprotected sex
- Effectiveness: most effective within the first 24 hours; decreases over time
- Available from a pharmacy without a prescription
Copper IUD (non-hormonal device)
- Time window: up to 120 hours (five days) after unprotected sex
- Effectiveness: over 99% effective and the most reliable option available
- Must be fitted by a trained clinician and is not available from a pharmacy
This information is for general guidance only. Always seek personalised advice from a pharmacist or healthcare professional about which option is most suitable for your individual circumstances.
Does Body Weight Affect the Emergency Contraception Pill?
Body weight is an important consideration when choosing an emergency contraception pill. Current FSRH guidance advises that levonorgestrel may be less effective in people with a higher body weight.
There is no single fixed weight or BMI threshold in current guidance. The most appropriate option depends on your individual circumstances.
If body weight is a concern, ellaOne or a copper IUD may be more appropriate. Our pharmacists at G.M. Graham Pharmacies can advise on the best option for you. Contact our team today to get the right guidance quickly.
What to Expect After Taking the Emergency Contraception Pill
Most people do not experience significant side effects after taking either pill. Some may notice nausea, headache, breast tenderness, or mild abdominal discomfort. These effects are usually short-lived.
If you vomit within three hours of taking levonorgestrel, seek advice from a pharmacist. You may need to take another dose. For ellaOne, the same advice applies if vomiting occurs within three hours.
Your next period may arrive earlier or later than expected. This is a normal hormonal response. If your period is more than five to seven days late, take a pregnancy test to confirm the emergency contraception has worked.
The emergency contraception pill does not provide ongoing contraceptive cover. It is important to use a reliable method of contraception going forward. A pharmacist can advise on suitable options.
EllaOne and Hormonal Contraception: What You Need to Know
If you have taken ellaOne, do not use hormonal contraception for at least five days afterwards. This includes the combined pill, mini pill, and contraceptive patch. Using hormonal contraception too soon after ellaOne can reduce its effectiveness.
Levonorgestrel does not interact with hormonal contraception in the same way. Your pharmacist will advise on when it is safe to resume your regular method. They will also advise on whether additional precautions are needed.
If you are unsure about any aspect of your contraception after taking an emergency pill, get in touch with our team. Our pharmacists at G.M. Graham Pharmacies are here to help.
The Copper IUD as Emergency Contraception
The copper IUD is the most effective form of emergency contraception available. It is over 99% effective when fitted within five days of unprotected sex. It works by preventing fertilisation and implantation.
Unlike the emergency contraception pill, the copper IUD also provides ongoing contraception. It can remain in place for up to ten years. This makes it one of the most cost-effective contraceptive options available.
The copper IUD must be fitted by a trained clinician. It is not available from a pharmacy. If you are considering this option, speak to your GP or a sexual health clinic as soon as possible.
It is particularly worth considering if you are looking for long-term contraception as well as emergency cover. It is also a suitable option for those where the emergency contraception pill may be less effective due to body weight or other factors.
The copper IUD is hormone-free. This makes it suitable for people who cannot or prefer not to use hormonal contraception. It is one of the few emergency contraception options that does not rely on hormones at all.
Some people experience heavier or more painful periods after having a copper IUD fitted. This is a known side effect that is worth discussing with a clinician before making a decision. A sexual health professional can help you weigh up the benefits and drawbacks for your individual situation.
Getting the Emergency Contraception Pill Quickly
Time is the most important factor when it comes to emergency contraception. The sooner you act, the more effective your chosen option is likely to be. Do not delay while deciding which option to take.
Both ellaOne and levonorgestrel are available from pharmacies without a prescription. You can access them without seeing a GP.
Our team provides discreet, non-judgmental advice. We can help you choose the most appropriate option quickly. Whether you need the pill or information about the copper IUD, we are here to help.
It is also worth thinking about your ongoing contraception after taking emergency contraception. The emergency contraception pill is not a substitute for regular contraception. A pharmacist can help you explore the options that might suit you long-term.
If you are concerned about STI exposure following unprotected sex, it is worth seeking advice separately. A sexual health clinic or GP can arrange appropriate testing. Emergency contraception addresses pregnancy risk only and does not protect against infections.
It is completely normal to feel worried or unsure after needing emergency contraception. Our team at G.M. Graham Pharmacies is here to provide calm, practical, and confidential support whenever you need it.
Frequently Asked Questions
From how the emergency contraception pill works to what happens next, here are the answers to the most frequently asked questions about emergency contraception in the UK.
Is ellaOne more effective than Levonelle?
EllaOne is generally considered more effective than Levonelle, particularly between 72 and 120 hours after unprotected sex. It maintains its effectiveness more consistently across the full five-day window, making it the preferred choice when more time has passed.
Can I get the emergency contraception pill from a pharmacy without a prescription?
Both levonorgestrel and ellaOne are available from a pharmacy without a prescription. A brief consultation with a pharmacist will take place to confirm the most appropriate option, and under-16s can also receive emergency contraception confidentially, subject to an appropriate clinical and safeguarding assessment.
Does the emergency contraception pill protect against STIs?
No, the emergency contraception pill only reduces the risk of pregnancy and provides no protection against sexually transmitted infections. If you are concerned about STI exposure, speak to a pharmacist or sexual health clinic about appropriate testing.
Can I take the emergency contraception pill more than once?
The emergency contraception pill can be taken more than once, but it is not intended as a regular method of contraception. If you find yourself needing it frequently, speak to a healthcare professional about a more reliable long-term contraceptive method.
Is the emergency contraception pill the same as the abortion pill?
No, the emergency contraception pill is completely different from the abortion pill. The emergency pill prevents pregnancy from occurring by delaying ovulation, while the abortion pill ends an existing pregnancy and is only available through specific medical services.
How soon after taking ellaOne can I start using hormonal contraception?
After taking ellaOne, you should wait at least five days before starting or resuming hormonal contraception. Starting too soon can reduce ellaOne’s effectiveness, so speak to your pharmacist for guidance on timing.
Get the Right Emergency Contraception Pill
The most effective emergency contraception pill is ellaOne. It works best when taken as soon as possible and maintains its effectiveness consistently up to five days after unprotected sex.
Levonorgestrel is also a valid option, particularly when taken within the first 24 hours. The right choice depends on how much time has passed, your body weight, and your individual circumstances.
Whatever your situation, acting quickly gives you the best chance of the emergency contraception working. At G.M. Graham Pharmacies in Essex, we offer fast, discreet, and non-judgmental access to emergency contraception. Our pharmacists are trained to help you make the right choice without delay. Book a consultation or contact our team today.
Disclaimer: The information in this blog is intended for general informational purposes only and does not constitute medical advice. Emergency contraception options vary depending on individual health circumstances and timing. Always consult a qualified pharmacist, GP, or sexual health professional before taking any medication. If you have concerns about your sexual health, please seek professional advice promptly.
