Leaflet: Information for the user
aiacet 75 micrograms film-coated tablets EFG
desogestrel
Read this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
aiacet is used to prevent pregnancy.
There are two main types of hormonal contraceptives:
aiacet is a progestogen-only pill.
aiacet contains a small dose of a type of female hormone, the progestogen desogestrel.
Most progestogen-only pills work mainly by preventing sperm from entering the uterus, but they do not always prevent the egg from ripening, which is the main action of combined pills.
aiacet is different from other progestogen-only pills because it has a dose that is high enough to prevent the egg from ripening in most cases. Therefore, aiacet provides high contraceptive efficacy.
Unlike the combined pill, aiacet can be taken by women who cannot tolerate oestrogens and by women who are breastfeeding.
A disadvantage is that you may have irregular vaginal bleeding during the use of aiacet. You may also not bleed at all.
aiacet, like other hormonal contraceptives, does not protect against HIV infection (AIDS) or any other sexually transmitted disease.
Do not take aiacet:
Tell your doctor before using aiacet if any of these conditions apply to you. Your doctor may recommend that you use a non-hormonal method of birth control.
Consult your doctor immediately if any of these conditions occur for the first time while using aiacet.
Warnings and precautions
Consult your doctor or pharmacist before starting to take aiacet if:
If you use aiacet in any of the situations described, you should remain under medical supervision. Your doctor can explain what you should do.
Breast cancer
Examine your breasts regularly and contact your doctor as soon as possible if you notice any lump in your breasts.
It has been observed that breast cancer occurs slightly more frequently in women who take the pill than in women of the same age who do not take it. If the woman stops taking the pill, the risk decreases gradually, so that 10 years after stopping it, the risk is the same as that of women who have never taken it. Breast cancer is rare before the age of 40, but the risk increases as the woman gets older. Therefore, the additional number of breast cancers diagnosed is higher the older the age at which the pill is stopped. The duration of pill use is not as important.
Out of 10,000 women who have taken the pill for up to 5 years and stop taking it around the age of 20, there will be less than one additional case of breast cancer diagnosed up to 10 years after stopping the pill, which will be added to the 4 cases normally diagnosed in this age group. Similarly, out of 10,000 women who have taken the pill for up to 5 years and stop taking it around the age of 30, there will be 5 additional cases to the 44 cases normally diagnosed. In 10,000 women who have taken the pill for up to 5 years and stop taking it around the age of 40, there will be 20 additional cases to the 160 cases normally diagnosed.
It is believed that the risk of breast cancer in users of progestogen-only pills like aiacet is similar to that of women who take the pill, although the data do not allow for clear conclusions to be drawn.
It seems that breast cancers found in women who take the pill are less advanced than breast cancers found in women who do not take it. It is not known if the difference in breast cancer risk is due to the pill. It could be that women are monitored more closely, so breast cancer is detected earlier.
Thrombosis
Contact your doctor immediately if you notice any possible signs of thrombosis (see also "Regular check-ups").
Thrombosis is the formation of a blood clot that can block a blood vessel. Thrombosis sometimes occurs in the deep veins of the legs (deep vein thrombosis). If the clot breaks loose from the veins where it has formed, it can reach and block the arteries of the lungs, causing what is known as a "pulmonary embolism", which can be fatal. Pulmonary embolism can cause chest pain, difficulty breathing, collapse, and even death.
Deep vein thrombosis is rare. It can develop whether or not you are taking the pill. It can also occur if you become pregnant.
The risk of thrombosis is higher in pill users than in non-users. It is believed that the risk in users of progestogen-only pills like aiacet is lower than in users of pills that also contain oestrogens (combined pills).
Psychiatric disorders
Some women who use hormonal contraceptives like aiacet have reported depression or a depressed mood. Depression can be severe and sometimes may induce suicidal thoughts. If you experience mood changes and symptoms of depression, contact your doctor for additional medical advice as soon as possible.
Children and adolescents
There are no clinical data available on the safety and efficacy in adolescents under 18 years of age.
Taking aiacet with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines. Also, inform any other doctor or dentist who prescribes you another medicine (or your pharmacist) that you are taking aiacet. They can inform you if you need to take any additional contraceptive measures (for example, using condoms) and if so, for how long, or if you should modify the use of the other medicine.
Some medicines:
These include medicines used for the treatment of:
If you are taking medicines or herbal remedies that may make aiacet less effective, you should also use a barrier contraceptive method. Since the effect of another medicine on aiacet can last up to 28 days after stopping the medicine, during this time, you should also use the additional barrier contraceptive method. Your doctor can inform you if you need to take any additional contraceptive measures and if so, for how long.
aiacet may also interfere with the effect of other medicines, causing an increase in the effect (for example medicines containing ciclosporin) or a decrease in the effect (for example lamotrigina).
Consult your doctor or pharmacist before taking any medicine.
Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Pregnancy
Do not use aiacet if you are pregnant or think you may be pregnant.
Breastfeeding
aiacet can be used during breastfeeding. Desogestrel does not seem to affect milk production or the quality of breast milk. However, it has been rarely reported that milk production decreases during the use of aiacet. A small amount of the active ingredient of aiacet passes into breast milk.
The health of breastfed children whose mothers used aiacet has been studied for 7 months, until the children were 2.5 years old. No effects on the growth or development of the children have been observed.
If you are breastfeeding and want to use aiacet, consult your doctor.
Driving and using machines
There is no indication that the use of aiacet has any effect on the ability to drive or operate machinery.
aiacet contains lactose.
This medicine contains lactose. If your doctor has told you that you have an intolerance to some sugars, consult them before taking this medicine.
Regular check-ups
During treatment with aiacet, your doctor will require you to have regular check-ups. In general, the frequency and characteristics of these check-ups will depend on your personal situation.
Contact your doctor as soon as possible in the following cases:
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Follow exactly the administration instructions of this medication indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.
How and when to take the tablets
Each aiacet blister pack contains 28 tablets. Take the first tablet from the blister pack where the correct day of the week appears. Every time you start a new aiacet blister pack, take a tablet from the top row, but not just any tablet. For example, if you start on a Wednesday, you should take the tablet from the top row marked with "WED". Continue taking one tablet a day until the blister pack is empty, always following the direction of the arrows. Looking at the front of the blister pack, you can easily check if you have already taken your tablet on a given day.
Take your tablet approximately at the same time every day, swallowing it whole with water. You may experience some bleeding during the use of aiacet, but you should continue taking the tablets normally. When you finish a blister pack, you should start a new one the next day, therefore without leaving any day of rest and without waiting for bleeding to appear.
Starting the first pack of aiacet
Wait until you have your period and on the first day of your period, take the first tablet of aiacet. This way, you do not need to take additional contraceptive precautions.
You can also start on days 2 to 5 of your cycle, but in this case, make sure to use a complementary contraceptive method (barrier method, condom) during the first 7 days of treatment with the tablets.
If you are not in a tablet, ring, or patch rest interval.
You can start taking aiacet the day after taking the last tablet from your current pack or the day of removal of the vaginal ring or transdermal patch (this means you do not have to leave a rest period from the tablets, ring, or patch). If your current pill contains inactive tablets (placebo), you can start taking aiacet the day after taking the last active tablet (if you are not sure, consult your doctor or pharmacist). Following these instructions, you do not need to take additional contraceptive precautions.
If you are in a tablet, ring, or patch rest period.
You can also start the day after the rest period without a tablet, ring, or patch, or with inactive tablets (placebo) from your current contraceptive. If you follow these instructions, make sure to use a complementary contraceptive method (barrier method) during the first 7 days of taking the tablets.
You can stop your current preparation at any time and start taking aiacet immediately. You will not need to take additional contraceptive precautions.
Start using aiacet at the time you would receive the next injection or the day the implant or IUS is removed. You do not need to take additional contraceptive precautions.
You can start taking aiacet between 21 and 28 days after the birth of your baby. If you start later, make sure to use a complementary contraceptive method (barrier method) during the first 7 days you take the tablets. However, if you have already had sexual intercourse, you should rule out pregnancy before starting to take aiacet. You can find more information about breastfeeding in section 2 "Pregnancy and breastfeeding". Your doctor can also advise you.
Your doctor will advise you.
If you take more aiacet than you should
No serious harmful effects have been described for taking too many aiacet tablets at once. The symptoms that may occur are nausea, vomiting, and in young women, a slight vaginal bleeding.
For more information, consult your doctor.
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone 91 562 04 20, indicating the medication and the amount ingested.
If you forget to take aiacet
If you forget one or more tablets in the first week of startingtreatment and you have had sexual intercourse during the previous week of forgetting the tablets, there is a possibility that you may have become pregnant. Consult your doctor.
If you suffer from gastrointestinal disorders (e.g., vomiting or severe diarrhea)
Follow the instructions for forgetting tablets. If you vomit within 3-4 hours after taking your aiacet tablet or have severe diarrhea, it may be that the active ingredient has not been fully absorbed.
If you interrupt treatment with aiacet
You can stop taking aiacet at any time you want. From the day you stop taking it, you will no longer be protected from pregnancy.
If you have any other doubts about the use of this medication, ask your doctor or pharmacist.
Like all medications, this medication can cause side effects, although not all people experience them. Contact your doctor if you suffer from any of the following side effects, especially if they are acute or persistent.
Severe side effects that may be associated with the use of aiacet are explained in the sections "Breast cancer" and "Thrombosis" in section 2 "What you need to know before taking aiacet". Read this point to know the detailed information and consult your doctor immediately if you consider it necessary.
Consult your doctor immediately if you experience allergic reactions (hypersensitivity), including swelling of the face, lips, tongue, and/or throat that cause difficulty breathing or swallowing (angioedema and/or anaphylaxis).
Irregular vaginal bleeding may occur during the use of aiacet. It can be a slight spotting that does not even require the use of a pad or a more intense bleeding, which is similar to a scarce menstruation and may require the use of sanitary protection (tampons or pads). It can also happen that you never have bleeding. Irregular bleeding is not a sign that the contraceptive protection of aiacet has decreased. In general, you do not need to do anything, just continue taking aiacet. However, if the bleeding is intense or prolonged, consult your doctor.
How often do other possible side effects occur?
Frequent(may affect up to 1 in 10 women):
Uncommon(may affect up to 1 in 100 women):
Rare(may affect up to 1 in 1,000 women):
Frequency not known(cannot be estimated from the available data):
Aside from these side effects, breast secretion may occur.
Reporting side effects
If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect that is not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.
Keep this medication out of the sight and reach of children.
Do not use this medication after the expiration date that appears on the packaging after CAD. The expiration date is the last day of the month indicated.
This medication does not require special storage conditions.
Medications should not be thrown away through wastewater or household waste. Deposit the packaging and medications 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 medications you no longer need. This way, you will help protect the environment.
Composition of aiacet
Appearance of the product and package contents
Film-coated tablet, cylindrical, biconvex, and white in color with a diameter of approximately 6.00 mm.
aiacet is presented in PVC/Aluminum blister packs.
Each individual blister pack is packaged in a sleeve that is inserted into a cardboard box.
Presentation of:
28 film-coated tablets
84 film-coated tablets
168 film-coated tablets
Only some pack sizes may be marketed.
Marketing authorization holder and manufacturer
Marketing authorization holder
Laboratorios Cinfa, S.A.
Carretera Olaz-Chipi, 10. Polígono Industrial Areta
31620 Huarte (Navarra) - Spain
Manufacturer
Cyndea Pharma, S.L.
Polígono Industrial Emiliano Revilla Sanz
Avenida de Ágreda, 31,
Ólvega, 42110 Soria
Spain
Date of the last revision of this leaflet:October 2020
Detailed and updated information about this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
You can access detailed and updated information about this medication by scanning the QR code included in the leaflet and packaging with your mobile phone (smartphone). You can also access this information at the following internet address: https://cima.aemps.es/cima/dochtml/p/76226/P_76226.html
QR code to: https://cima.aemps.es/cima/dochtml/p/76226/P_76226.html
The average price of AIACET 75 micrograms FILM-COATED TABLETS in October, 2025 is around 3.98 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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