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Home - Period Delay - Norethisterone 5mg

Norethisterone 5mg

Period Delay

Norethisterone tablets belong to a group of medicines called progestogens.

These work by acting on receptors in the body to mimic or exaggerate the effects of the natural hormone, progesterone.

Before a womans period is due there is a fall in the level of progestogen hormone in the body.

When it falls below a certain level, the lining of the uterus is broken down and the period starts. Taking Norethisterone delays this until you stop taking the medication.

PLEASE NOTE: Norethisterone is not a contraceptive and will not prevent pregnancy.

 

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Norethisterone tablets belong to a group of medicines called progestogens. These work by acting on receptors in the body to mimic or exaggerate the effects of the natural hormone, progesterone.


Before a womans period is due there is a fall in the level of progestogen hormone in the body. When it falls below a certain level, the lining of the uterus is broken down and the period starts. Taking Norethisterone delays this until you stop taking the medication.


PLEASE NOTE: Norethisterone is not a contraceptive and will not prevent pregnancy.

 

Norethisterone 5mg tablets are to be taken three times a day to delay periods. The course should be started 4 to 5 days before a period is due and continued for as long as needed. A period bleed will normally start within 2 to 3 days of stopping the medication.

Women currently taking a contraceptive pill (both combined and progestrogen only) should not use norethisterone to delay their periods. Information about delaying periods whilst taking contraceptive pills or with Norethisterone can be found on the NHS Choices page How can I delay my period?.

If you forget to take the tablets

Do not take a double dose to make up for a forgotten dose. If you forget to take a dose take it as soon as you remember it and then take the next dose at the right time.

 

The most commonly reported side effects are bloating, breast tenderness, loss of libido, and stomach pains. Side effects are more likely if norethisterone is taken long term, rather than in a short course to delay periods.

Some women taking norethisterone experience fluid retention which can worsen a pre-existing migraine, epilepsy, blood pressure and asthma.

Very rarely, norethisterone may cause a severe allergic reaction which can in some cases be life-threatening. Sudden onset of some or all of the following require emergency treatment (very rare):

  • wheezing
  • difficulty breathing
  • feeling faint
  • swelling of the face or tongue
  • swelling of the hands and feet
  • intense itchy skin rash
  • For a full list of side effects CLICK HERE

    Increased risk of clotting

    All women have a small chance of having a blood clot in the veins of the legs or in the lungs or other parts of the body. The risk of a having a clot is very slightly increased when taking norethisterone. The risk of having a clot is also increased with the folloing risk factors:

  • if the patient is very overweight
  • if they have a history of previous blood clot in the veins or lungs
  • if there is a family history of blood clots
  • if the patient is immobilie for long periods of time, for example post surgery or if they have a physical disability.
  • if the patient has just had a serious injury or any major invasive surgery.
  • if the patient has a history of repeated miscarriage
    • INTERACTIONS with other medicines

      Patients should check with their doctors before taking norethisterone if taking any of the following. 

    • Medicines to treat epilepsy (e.g. phenytoin, carbamazepine)
    • Antibiotic medicines to treat an infection (e.g. tetracyclines, rifampicin, co-trimoxazole)
    • Antiviral medicines to treat HIV (e.g. ritonavir, nelfinavir)
    • Anticancer medicines
    • Herbal preparations containing St John's Wort (Hypericum perforatum)
    • Aminoglutethimide, sometimes used in Cushing's syndrome
    • Ciclosporin (for suppressing the immune system)
    • Non-steroidal inflammatory drugs (NSAIDs) for treating pain and inflammation
    • Medicines for high blood pressure

     

    Prices

    Medication Quantity Price
    Norethisterone 5mg 90 Tablets (27 Day Delay)
    £34.90 34.9
    Norethisterone 5mg 30 Tablets (7 day delay)
    £17.49 17.49
    Norethisterone 5mg 60 Tablets (17 days max)
    £26.50 26.5

     

    Always read the patient information leaflet before commencing treatment.

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