Norethisterone 5mg Tablets

Price range: £14.99 through £29.99

Norethisterone is a synthetic form of the hormone progesterone, widely used to regulate menstrual disorders such as heavy periods, endometriosis, and period delay. By mimicking natural progesterone, Norethisterone helps manage conditions caused by hormonal imbalances. It can cause period delays for up to 17 days. It is not a contraceptive.

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This medication may require an online consultation with a UK-registered prescriber to assess its suitability before a prescription can be issued.

Clear Start Consultation

Norethisterone 5mg Tablets are a reliable and well-established option for delaying menstruation. Many women choose this treatment when they need to postpone their period for a special occasion, travel, exams, or sporting events. Instead of altering your long-term contraceptive plan, Norethisterone offers a short-term, flexible solution.

This medicine contains norethisterone, a synthetic form of the hormone progesterone. During a typical cycle, progesterone levels fall just before your period begins. By maintaining those hormone levels artificially, Norethisterone prevents the uterine lining from shedding, therefore, delaying your period.

To use the tablets effectively, start taking one tablet three times a day, beginning three days before your period is due. You can continue this for up to 17 days, depending on your doctor’s advice. Your period usually starts two to three days after you stop taking the tablets.

How It Works

Norethisterone works by sustaining progesterone levels in the body. This tricks your system into thinking that it should not start the menstrual process. As a result, the womb lining stays in place until the treatment ends. Once the tablets are stopped, hormone levels drop naturally and the period begins.

Why Choose Norethisterone

Norethisterone offers timely control over your cycle without needing ongoing hormonal contraception. It is ideal for those who want a convenient option with minimal disruption. Additionally, it can be taken alongside most other medications, although it’s essential to confirm compatibility with your GP.

Important Note

Norethisterone 5mg Tablets are Prescription Only Medicines (POM) in the UK.
You must consult a healthcare professional before use. Always follow their guidance regarding dosage, and inform them of any other conditions or medications. This treatment is not a contraceptive and will not prevent pregnancy.

Directions

Follow the guidance of your healthcare provider and read the instructions before use:

  • Take Norethisterone three times daily, starting three days before your period is due until you wish your period to resume.
  • Your period should come within two to three days after stopping Norethisterone.
  • Don’t use Norethisterone to stop your period once it starts.
  • If you miss a dose, take it as soon as you remember, unless your next tablet is nearly due, in which case skip the missed dose and take the following amount at the regular time.
  • For heavy periods or endometriosis, Norethisterone may be taken daily for extended periods (up to 6 months), usually at a dose of 5mg two to three times a day. It helps reduce endometrial growth and minimize painful symptoms. Follow the dosage prescribed by your healthcare provider.

 

Ingredients

Active Ingredient:

  • Norethisterone (5mg per tablet)

Other Ingredients:

  • Lactose monohydrate

  • Maize starch

  • Magnesium stearate

Side Effects

Common side effects may include:

  • Nausea

  • Headaches

  • Breast tenderness

  • Changes in menstrual flow

Serious (rare) side effects:

  • Blood clots

  • Liver problems

  • Allergic reactions

Stop the medicine and seek medical attention if serious side effects occur.

Warnings

  • Allergies: Do not take if allergic to norethisterone or any tablet ingredients.

  • Medical Conditions: Consult your doctor if you have a history of blood clots, liver disease, or hormone-sensitive cancers.

  • Pregnancy and Breastfeeding: Not recommended during pregnancy. Use during breastfeeding only under medical supervision.

  • Age Restrictions: Not suitable for children.

  • Drug Interactions: Inform your doctor of all medications you are taking.

  • It begins to take effect quickly, but the exact time depends on the condition being treated.
  • It is typically used for short-term symptom management, but some conditions may require extended use under medical supervision.
  • Take the missed dose as soon as you remember. If it's almost time for your next dose, skip the missed one—do not take a double dose.
  • Some medicines may interfere with its effectiveness. Speak to a doctor before combining treatments.
  • No, it is not a contraceptive. Alternative birth control methods should be used if needed.