What is Norethisterone?
Norethisterone is a synthetic version of a natural hormone called progesterone. It’s commonly used to delay periods for short-term reasons, such as going on holiday or attending a special event. It’s a prescription-only medication that comes in tablet form.
How does Norethisterone work to delay my period?
Your period happens when your body’s levels of progesterone drop. Norethisterone works by keeping those hormone levels up, which prevents the lining of your womb from shedding—meaning your period doesn’t start. Once you stop taking the tablets, your hormone levels drop, and your period usually begins within a few days.
How do I take Norethisterone?
To delay your period, you’ll usually be advised to take one 5mg tablet three times a day, starting three days before your period is due. You can continue taking it for up to 17 days. Your period should start two to three days after you stop taking the tablets. Always follow the instructions given by your doctor or pharmacist, and don’t take more than prescribed.
Who can take Norethisterone?
Norethisterone isn’t suitable for everyone. You may not be able to take it if you:
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Are currently pregnant or breastfeeding
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Have a history of blood clots or thrombosis
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Experience unexplained vaginal bleeding
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Are allergic to norethisterone or similar medications
Before prescribing, our clinicians will carefully review your medical history to make sure it’s safe for you to use.
What are the main side effects of Norethisterone?
Like all medicines, Norethisterone can cause side effects, although not everyone gets them. Common side effects include:
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Headaches
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Nausea
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Breast tenderness
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Changes in mood
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Bloating or stomach cramps
Can I use Norethisterone for contraception?
No, Norethisterone is not a contraceptive.
It is used only to delay your period and does not protect against pregnancy. You will still need to use another form of contraception, such as condoms, if you want to avoid becoming pregnant while taking it.
What else should I know about Norethisterone?
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Norethisterone is not a contraceptive, so you’ll still need to use another form of birth control to prevent pregnancy.
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It may not be suitable for everyone—particularly if you have a history of blood clots, liver problems, or certain hormone-sensitive conditions.
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It’s important to tell your doctor about any medications or supplements you’re taking, as they may affect how Norethisterone works.
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You shouldn’t use it to delay your period regularly without medical advice.
Where can I get Norethisterone for period delay?
Getting started is easy. Just complete our short online medical questionnaire. One of our experienced clinicians will check if period delay treatment is safe for you. If approved, you can have your medicine delivered straight to your door or pick it up in-branch from The Kinston Pharmacy.




