


Package Leaflet: Information for the User
Circlet 0.120 mg/0.015 mg every 24 hours, vaginal release system
etonogestrel/ethinylestradiol
Important things you should know about combined hormonal contraceptives (CHCs):
Read the entire package leaflet carefully before starting to use Circlet, as it contains important information for you.
Contents of the Package Leaflet
Circlet is a vaginal contraceptive ring used to prevent pregnancy. Each ring contains a small amount of two female sex hormones, etonogestrel and ethinylestradiol. The ring slowly releases these hormones into the bloodstream. Given the small amount of hormones released, Circlet is a low-dose hormonal contraceptive. As Circlet releases two different types of hormones, it is a combined hormonal contraceptive. |
Circlet works like the combined oral contraceptive pill (the "Pill"), but instead of taking a pill every day, the ring is used for 3 consecutive weeks. Circlet releases two female sex hormones that prevent the ovaries from releasing an egg. If no egg is released, you cannot become pregnant.
General considerations
Before starting to use Circlet, you should read the information about blood clots in section 2. It is particularly important that you read the symptoms of a blood clot (see section 2 "Blood clots").
This prospectus describes various situations in which you should stop using Circlet, or in which Circlet may be less reliable. In these situations, you should not have sexual intercourse, or you should take additional non-hormonal contraceptive measures, such as a male condom or another barrier method. Do notuse the rhythm method or the temperature method. These methods may not be reliable since Circlet alters the monthly temperature changes of the body and cervical mucus.
Circlet, like other hormonal contraceptives, does not protect against HIV infection (AIDS) or any other sexually transmitted disease.
2.1 When you should not use Circlet
You should not use Circlet if you have any of the conditions listed below. Inform your doctor if you have any of the conditions listed below. Your doctor will discuss with you what other form of contraception would be more suitable.
If any of these circumstances occur for the first time while using Circlet, remove the ring immediately and consult your doctor. In the meantime, use non-hormonal contraceptive measures.
Do not use Circlet if you have hepatitis C and are taking medications that contain ombitasvir/paritaprevir/ritonavir and dasabuvir or glecaprevir/pibrentasvir (see also section 2.4. "Other medicines and Circlet").
2.2 Warnings and precautions
When should you consult your doctor? Seek urgent medical attention
To obtain a description of the symptoms of these serious side effects, see "How to recognize a blood clot". |
Tell your doctor if you suffer from any of the following conditions.
If the condition develops or worsens while you are using Circlet, you should also inform your doctor.
BLOOD CLOTS
The use of a combined hormonal contraceptive like Circlet increases your risk of developing a blood clot compared to not using it. In rare cases, a blood clot can block blood vessels and cause serious problems.
Blood clots can form:
Recovery from blood clots is not always complete. In rare cases, there can be serious long-term effects or, very rarely, they can be fatal.
It is essential to remember that the overall risk of a harmful blood clot due to Circlet is small.
HOW TO RECOGNIZE A BLOOD CLOT
Seek urgent medical attention if you notice any of the following signs or symptoms.
Are you experiencing any of these signs? | What might you be suffering from? |
| Deep vein thrombosis |
If you are unsure, consult a doctor, as some of these symptoms, such as cough or shortness of breath, can be confused with a milder condition such as a respiratory infection (e.g., a "common cold"). | Pulmonary embolism |
Symptoms that occur more frequently in one eye:
| Retinal vein thrombosis (blood clot in the eye). |
| Heart attack. |
Sometimes the symptoms of a stroke can be brief, with almost immediate and complete recovery, but you should still seek urgent medical attention as you may be at risk of having another stroke. | Stroke |
| Blood clots that block other blood vessels. |
BLOOD CLOTS IN A VEIN
What can happen if a blood clot forms in a vein?
When is the risk of a blood clot in a vein higher?
The risk of a blood clot in a vein is higher during the first year of taking a combined hormonal contraceptive for the first time. The risk may also be higher if you start taking a combined hormonal contraceptive (the same medicine or a different one) after an interruption of 4 weeks or more.
After the first year, the risk decreases, but it is always slightly higher than if you were not taking a combined hormonal contraceptive.
When you stop using Circlet, your risk of a blood clot returns to normal within a few weeks.
What is the risk of a blood clot?
The risk depends on your natural risk of VTE and the type of combined hormonal contraceptive you are taking.
The overall risk of a blood clot in the leg or lung (DVT or PE) with Circlet is small.
Risk of a blood clot in a year | |
Women who do not usea combined hormonal contraceptive pill, patch, or ring and are not pregnant | About 2 out of 10,000 women |
Women who use a combined hormonal contraceptive pill that contains levonorgestrel, norethisterone, or norgestimate | About 5-7 out of 10,000 women |
Women who use Circlet | About 6-12 out of 10,000 women |
Factors that increase your risk of a blood clot in a vein
The risk of a blood clot with Circlet is small, but some conditions increase the risk. Your risk is higher:
The risk of a blood clot increases with the number of conditions you have.
Long-haul flights (more than 4 hours) may temporarily increase the risk of a blood clot, especially if you have any of the other risk factors listed.
It is essential to inform your doctor if you suffer from any of the above conditions, even if you are not sure. Your doctor may decide that you should stop using Circlet.
If any of the above conditions change while you are using Circlet, for example, a close relative experiences a thrombosis without a known cause or you gain a lot of weight, inform your doctor.
BLOOD CLOTS IN AN ARTERY
What can happen if a blood clot forms in an artery?
Like a blood clot in a vein, a clot in an artery can cause serious problems. For example, it can cause a heart attack or a stroke.
Factors that increase your risk of a blood clot in an artery
It is essential to note that the risk of a heart attack or stroke due to Circlet is very small, but it may increase:
If you have one or more of these conditions or if any of them are particularly severe, the risk of a blood clot may be increased further.
If any of the above conditions change while you are using Circlet, for example, you start smoking, a close relative experiences a thrombosis without a known cause, or you gain a lot of weight, inform your doctor.
Cancer
The following information has been obtained from studies with combined oral contraceptives and may be applicable to Circlet. There is no information available on the vaginal administration of contraceptive hormones (such as Circlet).
Cases of breast tumors have been observed with a slightly higher frequency in women using oral contraceptives, but it is not known if this is due to the treatment. For example, it may be that more tumors are found in women using oral contraceptives because they undergo medical check-ups more frequently. This increased frequency decreases gradually after stopping treatment.
It is essential to examine your breasts regularly and inform your doctor if you notice any lump. Inform your doctor if any close relative has or has had breast cancer (see section 2.2 "Warnings and precautions").
Rare cases of benign liver tumors, and even more rarely, malignant liver tumors, have been reported in women using oral contraceptives. Contact your doctor if you have severe and unusual abdominal pain.
In users of combined oral contraceptives, it has been observed that endometrial cancer (the tissue that lines the uterus) or ovarian cancer occurs less frequently. This may also be the case with Circlet, but it has not been confirmed.
Psychiatric disorders
Some women who use hormonal contraceptives like Circlet have reported depression or a depressed mood. Depression can be severe and sometimes can induce suicidal thoughts. If you experience mood changes and depressive symptoms, contact your doctor for additional medical advice as soon as possible.
2.3 N
You can put on and remove Circlet yourself. Your doctor will indicate when to start using it for the first time. The vaginal ring must be inserted on the correct day of your menstrual cycle (see section 3.3 "When to start with the first ring") and remain in the vagina for 3 consecutive weeks. Regularly check that Circlet is in your vagina (for example, before and after sexual intercourse) to ensure that you are protected against pregnancy. After the third week, remove Circlet and take a week off. You will normally have your menstrual period or rule during this ring-free break.
While using Circlet, you should not use certain female barrier contraceptive methods, such as the vaginal diaphragm, cervical cap, or female condom. These barrier contraceptive methods should not be used as a reinforcement of birth control, as Circlet may interfere with the correct placement and positioning of the diaphragm, cervical cap, or female condom. However, you can use a male condom as an additional barrier contraceptive method.
3.1 How to put on and remove the Circlet

3.2 Three weeks in, one week out
If you put on the new ring more than 3 hours late, the contraceptive efficacy may be reduced. Follow the instructions in section 3.4 "What to do if you forget to put on a new ring after the ring-free break".
If you use Circlet as described above, your bleeding will take place approximately on the same days each month.
3.3 When to start with the first ring
Put on Circlet on the first day of your natural cycle (i.e., the first day of your menstruation). Circlet starts working immediately. You do not need to take other contraceptive measures.
You can also start with Circlet between the 2nd and 5th day of your cycle, but if you have sexual intercourse during the first 7 days of using Circlet, make sure to use a complementary contraceptive method (such as a male condom). You should only follow this recommendation when using Circlet for the first time.
Start using Circlet as soon as the day after the break with your current pill. If the packaging of your pill also contains inactive tablets, start Circlet as soon as the day after the last inactive tablet. If you are not sure which tablet is which, consult your doctor or pharmacist. Never extend the break days of your current pill beyond what is recommended.
If you have taken your current pill continuously and correctly and are sure you are not pregnant, you can also stop taking the pill on any day of your current cycle and start with Circlet immediately.
Start using Circlet as soon as the day after the patch-free break. Never extend the patch-free break days beyond what is recommended.
If you have used the patch continuously and correctly and are sure you are not pregnant, you can also remove the patch on any day and start with Circlet immediately.
You can stop taking your progestogen-only pill on any day and start Circlet the next day at the same time. However, make sure to also use a complementary contraceptive method (such as a male condom) during the first 7 days of using the ring.
Start using Circlet at the time when you should receive the next injection or the day the implant or IUS is removed. However, make sure to use a complementary contraceptive method (such as a male condom) during the first 7 days of using the ring.
If you have just given birth, your doctor may advise you to wait until your first normal period appears before starting with Circlet. Sometimes it is possible to start earlier; your doctor will advise you on how to do it. If you are breastfeeding and want to use Circlet, you should consult your doctor first.
Consult your doctor.
3.4 What to do if...
The ring is accidentally expelled from the vagina
Circlet can be accidentally expelled from the vagina, for example, if it is not inserted correctly, when removing a tampon, during sexual intercourse, if you have constipation, or if you have uterine prolapse (uterine descent). Therefore, you should regularly check if the ring is in your vagina (for example, before and after sexual intercourse).
The ring has been out of the vagina temporarily
Circlet may still protect you from pregnancy, but this will depend on how long it has been out of your vagina.
If the ring has been out of the vagina for:
By putting on a new ring, you will start a new 3-week cycle of use, and you may not have your period. However, you may experience intermenstrual bleeding or spotting during that cycle.
Choose this option only if you have used Circlet continuously for the previous 7 days.
The ring opens
In rare cases, the Circlet ring can open. Vaginal injury associated with ring breakage has been reported. If you notice that Circlet has opened, remove the ring and put on a new one as soon as possible. Take complementary contraceptive precautions (for example, a male condom) for the following 7 days. If you have had sexual intercourse before noticing that the ring had opened, consult your doctor.
More than one ring is inserted
There are no reports of serious harm due to overdose of Circlet hormones. If you accidentally insert more than one ring, you may feel unwell (nausea), vomit, or have vaginal bleeding. Remove the extra ring and contact your doctor if these symptoms do not disappear.
You can also call the Toxicology Information Service, phone: 91 562 04 20, indicating the medication and the amount used.
If you forget to put on a new ring after the ring-free break
Your ring-free breakhas lasted more than 7 days. Put on a new ring in the vagina as soon as you remember. Take additional contraceptive measures (such as a male condom) if you have sexual intercourse during the following 7 days. If you have had sexual intercourse during this ring-free break, there is a possibility that you may have become pregnant. In this case, inform your doctor immediately. The longer the ring-free break, the higher the risk of pregnancy.
If you forget to remove the ring
If your period or rule does not appear
If your period does not appear, but you have used Circlet according to the instructions and have not taken other medications, it is very unlikely that you are pregnant. Continue using Circlet as usual. However, if you have two consecutive missed periods, you may be pregnant, so you should inform your doctor immediately. Do not put on the next Circlet until your doctor has checked that you are not pregnant.
If your usual bleeding does not occur during the 1-week break without the ring and you have deviated from the recommended regimen, there is a possibility that you may be pregnant, so you should contact your doctor before putting on a new ring.
If you have unexpected bleeding
In some women, during the use of Circlet, unexpected vaginal bleeding may appear between menstrual periods. You may need hygienic protection. However, continue to use the ring as usual; do not remove it. If the bleeding continues, becomes heavier, or starts again, consult your doctor.
If you want to change the day your period or rule starts
If you use Circlet according to the instructions, your menstrual period (withdrawal bleeding) will start during the week without the ring. If you want to change the day it starts, you must shorten (never lengthen!) the ring-free break.
For example, if your period usually starts on a Friday, you can change it to a Tuesday, i.e., 3 days earlier, starting from the next month. Simply put on the next ring 3 days earlier than the usual day.
If the break is very short (for example, 3 days or less), you may not have your usual bleeding. You may experience spotting (drops or spots of blood) or intermenstrual bleeding during the use of the next ring.
If you are not sure how to do it, consult your doctor.
If you want to delay your period or rule
Although it is not the recommended regimen, you can delay your period (withdrawal bleeding) by putting on a new ring immediately after removing the current ring, without taking the break between rings. You can leave the new ring in place for up to 3 weeks. During the use of the new ring, you may experience spotting (drops or spots of blood) or irregular bleeding. When you want your period to start, simply remove the ring. Take the normal 1-week break without the ring and then put on a new ring.
You can consult your doctor before deciding to delay your menstrual period.
3.5 If you want to stop using Circlet
You can stop using Circlet at any time you want. If you do not want to become pregnant, consult your doctor about other contraceptive methods.
If you stop using Circlet because you want to become pregnant, it is recommended to wait until you have had your first natural period before trying to conceive. This will help you calculate the due date.
Like all medicines, Circlet can cause adverse effects, although not all people suffer from them. If you experience any adverse effect, especially if it is severe and persistent, or have any change in health that you think may be due to Circlet, consult your doctor.
All women who take combined hormonal contraceptives are at a higher risk of developing blood clots in the veins (venous thromboembolism (VTE)) or blood clots in the arteries (arterial thromboembolism (ATE)). For more detailed information on the different risks of taking combined hormonal contraceptives, see section 2 "What you need to know before you start using Circlet".
If you are allergic to any of the components of Circlet (hypersensitivity), you may have the following symptoms (frequency not known): angioedema and/or anaphylaxis [swelling of the face, lips, tongue, and/or throat and/or difficulty swallowing] or urticaria, possibly with difficulty breathing. If this occurs, remove Circlet and contact your doctor immediately (see also section 2.2 "Warnings and precautions").
Users of Circlet have reported the following adverse effects:
Frequent:may affect up to 1 in 10 women.
Infrequent:may affect up to 1 in 100 women.
Rare:may affect up to 1 in 1,000 women.
The chances of having a blood clot may be higher if you have any other condition that increases this risk (see section 2 for more information on conditions that increase the risk of blood clots and symptoms of a blood clot).
Frequency not known(cannot be estimated from the available data).
There have been reports of breast cancer and liver tumors in women using combined hormonal contraceptives. For more information, see section 2.2 Warnings and precautions, Cancer.
In very rare cases, the Circlet ring may open. For more information, see section 3.4 What to do if… The ring opens.
Reporting of adverse effects:
If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect that does not appear in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.
Keep this medicine out of sight and reach of children.
If you discover that a child has been exposed to the hormones of Circlet, ask your doctor for advice.
Store below 30°C. Store in the original packaging to protect it from light and moisture.
Do not use Circlet if it was dispensed more than 4 months ago. The dispensing date is shown on the box and on each pouch.
Do not use Circlet after the expiration date shown on the box and on each pouch.
Do not use Circlet if you notice changes in the color of the ring or any visible sign of deterioration.
Dispose of the used ring with household waste, preferably inside its pouch with a closure. Circlet should not be flushed down the toilet. Like other medicines, do not throw unused or expired rings down the drain or in the trash.
Medicines should not be thrown down the drain or in the trash. Deposit the packaging and medicines you no longer need at the SIGRE Point in the pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medicines you no longer need. This way, you will help protect the environment.
Composition of Circlet
Etonogestrel and ethinylestradiol are released from the ring in a ratio of 0.120 mg/day and 0.015 mg/day, respectively, for three weeks.
Appearance of the Product and Package Contents
Circlet is a flexible, transparent, and almost colorless ring, measuring 54 mm in width.
Each ring is packaged in a laminated aluminum pouch that can be reclosed. The pouch is presented in a cardboard box along with this leaflet. Each box contains 1 or 3 rings.
Only some package sizes may be marketed.
Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder:
Organon Health, S.L.
Paseo de la Castellana, 77
28046 Madrid
Spain
Tel.: 915911279
Manufacturer:
N.V. Organon
Kloosterstraat 6,
5349 AB Oss
Netherlands
This medicine is authorized in the Member States of the European Economic Area under the following name:
Circlet
0.120 mg/0.015 mg every 24 hours, vaginal release system
Germany, Belgium, Spain, Slovakia, Hungary, Luxembourg, Netherlands, Poland, Portugal.
Date of the last revision of this leaflet:September 2022.
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) (http://www.aemps.gob.es/)
The average price of CIRCLET 0.120 mg/0.015 mg EVERY 24 HOURS, VAGINAL DELIVERY SYSTEM in October, 2025 is around 29.69 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.
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