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The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL00010/0548.
Noristerat 200mg solution for intramuscular injection
Due to regulatory changes, the content of the following Patient Information Leaflet may vary from the one found in your medicine pack. Please compare the 'Leaflet prepared/revised date' towards the end of the leaflet to establish if there have been any changes.
If you have any doubts or queries about your medication, please contact your doctor or pharmacist.
Noristerat®
Norethisterone enantate
1. What Noristerat is and what it is used for
2. Make sure Noristerat is OK for you
3. How to use Noristerat
4. Possible side effects
5. How to store Noristerat
6. What is in Noristerat and who makes it
Noristerat is an injectable (depot) contraceptive. It is intended as a short-term method of contraception, for example in women whose partners are undergoing vasectomy, until the vasectomy is effective. It is also for use in women immunised against rubella, to prevent pregnancy while the virus is active.
You use it to stop you getting pregnant.
Noristerat contains a type of female sex hormone, called a progestogen.
This hormone stops you getting pregnant by working in three ways: by preventing an egg being released from your ovaries; by making the fluid (mucus) in your cervix thicker, which makes it more difficult for sperm to enter the womb; and by preventing the lining of your womb thickening enough for an egg to grow in it.
The benefits of using Noristerat include:
Noristerat will not protect you against sexually transmitted infections, such as Chlamydia or HIV. Only condoms can help to do this.
It’s important that you understand the benefits and risks of using Noristerat before you are given it, or when deciding whether to have a second injection. Although Noristerat is suitable for most healthy women it isn’t suitable for everyone.
Noristerat may slightly increase your risk of having a blood clot (called a thrombosis), especially in the first year of using it.
A clot in a leg vein – a deep vein thrombosis (or DVT) – is not always serious. However, if it moves up the veins and blocks an artery in the lungs, it can cause chest pain, breathlessness, collapse or even death. This is called a pulmonary embolism and is very rare.
Very rarely, blood clots can also form in the blood vessels of the heart (causing a heart attack) or the brain (causing a stroke). In healthy young women the chance of having a heart attack or stroke is extremely small.
You are more at risk of having a blood clot:
Signs of a blood clot include:
Noristerat has also been linked to liver diseases, such as jaundice and non-cancer liver tumours, but this is rare. Very rarely, Noristerat has also been linked with some forms of liver cancer in women who have used it for a long time.
Do not use Noristerat if you have any of the problems listed below. Using Noristerat would put your health at risk.
Some of the conditions listed below can be made worse by using Noristerat. Or they may mean it is less suitable for you. You may still be able to be given Noristerat but you need to take special care.
The main ingredient of Noristerat (the progestogen, norethisterone enantate) is partly converted into the oestrogen, ethinylestradiol. The expected concentration of ethinylestradiol in your body is relatively low compared to taking combined hormonal contraceptives containing ethinylestradiol. This means that although effects similar to those after taking combined hormonal contraceptives containing ethinylestradiol cannot be completely ruled out, experience to date suggests that this may not be the case.
Some women using hormonal contraceptives including Noristerat have reported depression or depressed mood. Depression can be serious and may sometimes lead to suicidal thoughts. If you experience mood changes and depressive symptoms contact your doctor for further medical advice as soon as possible.
If you ever need to take another medicine or herbal products at the same time, always tell your doctor, pharmacist or dentist that you’ve been given Noristerat. Also check the leaflets that come with all your medicines to see if they can be taken with hormonal contraceptives.
Some medicines can stop Noristerat from working properly – for example:
If you do need to take one of these medicines, you may need to use extra contraception (for example condoms) for a while. Your doctor, pharmacist or dentist can tell you if this is necessary and for how long.
Noristerat can also affect how well other medicines work. For example, if you have diabetes, you may need to take more insulin or other anti-diabetic drugs after being given Noristerat. Your doctor will tell you if this is necessary.
There are no special instructions about food and drink while on Noristerat
Pregnancy
You should not be given Noristerat if you are pregnant. If you think you might be pregnant, do a pregnancy test to confirm that you are and do not have your second injection.
Breast-feeding
Noristerat has not been shown to reduce the amount of milk you produce which is an advantage if you wish to breastfeed your baby. Very small amounts of the hormone are found in breast milk. There is no evidence to suggest that the small amounts of the hormone that appear in the milk are harmful to a healthy baby. However, if your baby has severe or long-lasting jaundice that requires medical treatment you should not breast-feed your baby after having your injection.
Noristerat has no known effect on the ability to drive or use machines.
This medicine contains 333.8 mg benzyl benzoate in each 1 ml ampoule.
Benzyl benzoate may increase jaundice (yellowing of the skin and eyes) in newborn babies (up to 4 weeks old).
Your doctor or family planning clinic will give you the first injection of Noristerat within the first five days of your period (unless you start just after a pregnancy or an abortion). The injection is given into the muscle.
By starting in this way you will have contraceptive protection at once.
One injection will give you contraception for 8 weeks. After 8 weeks a second injection can be given. You must make sure that you leave no longer than 8 weeks between injections or contraceptive protection will be lost.
Noristerat can normally be used straight after having a baby. Your doctor will advise you on when to start.
You may be able to have an injection immediately. Your doctor will advise you.
If, when the second injection is due, you have not had a further period since the first injection, it is unlikely that you are pregnant, but the second injection should not be given until pregnancy has been ruled out.
Overdosage is unlikely but if it does occur no serious ill-effects are expected.
Like all medicines, Noristerat can cause side effects, although not everybody gets them.
Signs of a blood clot:
Signs of a severe allergic reaction to Noristerat:
Signs of severe liver problems include:
If you get any side effects, talk to your doctor, family planning nurse or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Noristerat should not be used after the expiry date which is stated on the packaging. The expiry date refers to the last day of that month.
Store below 25°C. Protect from light.
The active substance is norethisterone enantate.
Each ampoule of Noristerat contains 200mg of the progestogen norethisterone enantate in 1ml of oily solution for injection into a muscle.
The other ingredients are benzyl benzoate and castor oil for injection.
Noristerat is a solution for intramuscular injection; the injection is given into the muscle.
Noristerat is supplied in single packs of 1 ampoule.
The company that holds the product licence for Noristerat is:
Noristerat is made by:
This leaflet was last updated in June 2019.
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