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Home / Period Delay / Norethisterone


  • Box of Norethisterone 5mg oral tablets
  • Box of Norethisterone tablets with blister strips
  • Front and rear view of Norethisterone 5mg tablet blister packs

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Note: You must complete a short online consultation so that our doctor can ensure that the treatment is suitable for you. The above pricing should only be used as a reference. The final decision to issue this treatment lies with the prescribing doctor.

What is Norethisterone?

Norethisterone is a period delay treatment containing a progesterone hormone. It is very similar to the combined and mini pills in terms of ingredients, but should not be mistaken for an oral contraceptive. Norethisterone is the generic name for the synthetic progesterone. Other forms of medication, such as contraceptives, include Norethisterone as part of their ingredients.

Progesterone is a female sex hormone produced naturally by your body. Norethisterone is synthetic version that's used to stop your body from following its natural menstrual cycle.

Norethisterone comes in the form of a 5mg tablet that should be swallowed with water. The usual dose is three times a day to delay your period for a few weeks.

When you finish your course of Norethisterone you will have your period as usual. Norethisterone does not clear your period or prevent it indefinitely, it simply holds off the bleed until a more convenient time for you.

How does Norethisterone work?

The synthetic progesterone prevents your womb from shedding its lining (your period) by raising the amount of progesterone in your system. When your period is due the amount of progesterone in your body begins to drop and your womb reacts by shedding its lining. When you take Norethisterone it increases the amount of progesterone you have, so that your body does not respond to the progesterone drop.

Norethisterone not only prevents your actual bleed it also prevents the symptoms of PMS, such as cramping, pain and mood swings associated with your period. For some women, this benefit is greater than preventing the physical bleed.

You can take Norethisterone to delay your period for several weeks. This gives you the freedom to take a holiday, attend an event such as a wedding or festival, or take your exams without the inconvenience or pressure of dealing with PMS and a period.

Norethisterone is not designed to be taken long term, as this increases the risk of any side effects. However, Norethisterone is used successfully by many women to manage their menstrual cycles and enjoy their lives without interruption.

It is generally safe to delay your period on occasion, but doing so regularly is not recommended. If you want more control over your periods you should speak to your doctor about using the combined contraceptive pill, as this can be used more regularly to delay periods or miss them altogether if your doctor recommends it. If you take a newer version of the mini 'POP' pill that contains desogestrel (such as Cerelle) it can prevent periods by stopping ovulation.

How to take Norethisterone

To use Norethisterone effectively you need to be aware of your menstrual cycle. The first pills should be taken three days before your period is due. If you are aware of an event in the future but do not follow your menstrual cycle you should start counting the days from the first day of your bleed. The average gap between bleeds is 28 days, but yours may be shorter or longer than this. When you understand your cycle you can take Norethisterone tablets at the correct time to delay your period.

You will need to take three 5mg tablets a day for the duration of your prescription. If you are on holiday or away from your home you will likely need to take your tablets with you.

If you forget or miss a dose you should take it as soon as your remember, but do not double up on Norethisterone, as this will increase the risk of developing side effects.

Your period will arrive two to three days after you stop taking Norethisterone. If it does not you should take a pregnancy test. If you want to stop taking Norethisterone tablets before the end of your prescribed course, it's safe to do so. Your period will arrive within two to three days.

Never share your period delay tablets with anyone else. They are a prescription medicine and may not be suitable for others.

If you already take the combined pill as a contraceptive you may prefer to use that to skip a period. It is usually safe to take your contraceptive pill without the seven-day break. This means you will not experience a period, although you may have some breakthrough spotting or bleeding. Norethisterone is not recommended if you already take the combined pill.

If you looking to buy Norethisterone 5mg tablets online for irregular periods, endometriosis, period pains or as part of a treatment for cancer you should follow your doctor's advice as appropriate doses significantly vary.

Norethisterone Dosages

Norethisterone is a small, white tablet presented in a foil strip. You should start these three days before your period begins.

The daily dosage of Norethisterone period delay is three 5mg tablets taken at regular intervals throughout the day.

Do not take Norethisterone for longer than your prescribed course. You will have your period three days after you stop the course.

Never chew or crush your tablets as this may mean you do not receive the full amount of hormone.

Other Medications With The Same Active Ingredient

Norethisterone is the generic name for a synthetic progesterone. It is used in other branded medications including:

  • Micronor
  • Noriday
  • Noristerat
  • Primulot N
  • Utovlan

Norethisterone Side Effects

Norethisterone tablets contain a low dose of progesterone, so you may not experience any side effects, but it is a prescription medicine. This means there are some potential side effects. The majority of these are mild and rare.

Many women find that the benefits of Norethisterone outweigh mild side effects and because most women take Norethisterone for a short period of time they are able to manage any mild discomfort.

The more common and mild side effects are likely to wear off after your body adjusts to the medicine.

Mild side effects include stomach ache, breast tenderness, skin rashes and itching, sex drive changes, headaches, dizziness, fluid retention and nausea.

Other rare but more serious side effects include:

  • A rise in blood pressure
  • Jaundice
  • Migraine or unusually bad headache
  • Liver problems (the signs are dark brown urine, nausea and abdominal pain)
  • Sudden severe changes in your senses, e.g. sight and hearing
  • Blood clots
  • An allergic reaction such as a tight chest, wheezing, hives or a swollen mouth and throat

If you develop any worrying side effects you should stop taking Norethisterone and speak to your doctor.

Norethisterone Precautions

As Norethisterone uses sex hormones to manage your hormonal balance it can have adverse effects on your health. You should not buy Norethisterone 5mg tablets online if any of these precautions apply to you:

  • If you have problems with your circulation you should not take Norethisterone, as it could increase the risk of blood clots. All hormonal medications hold this risk, including the combined and mini pills available on prescription. Circulation issues include heart attacks, a stroke, angina or blood clots.
  • The hormones in Norethisterone tablets can also affect liver disease. If you have liver tumours, jaundice or any type of liver-related illness Norethisterone is not suitable for you.
  • If you have cancers that are affected by sex hormones you should not take Norethisterone tablets. This includes breast cancer, womb and ovarian cancer.

Children and the elderly should not take this medication. Ensure you keep Norethisterone from the reach of children. If you take too many tablets, or someone else takes too many tablets, you should seek medical advice. Symptoms of overdose include stomach pain, vomiting, breast changes and vaginal bleeding.

Many women take Norethisterone tablets safely and delay their periods without any problems because it is a clinically proven and highly effective medication.

Women aged 16 are allowed to use period delay, but you can only buy it online if you are aged 18 or above. If you are younger than 18 you should speak to your doctor about using Norethisterone.

Some women are not suitable as the progesterone in Norethisterone may act on certain conditions. You should not take Norethisterone if you:

  • Are pregnant or think you might be pregnant
  • Are breastfeeding
  • If you've experienced problems with blood clots including a heart attack, stroke or DVT
  • Have migraines with visual disturbance (aura)
  • Have liver disease or complications
  • Have cancers that are affected by hormones including breast, womb and ovarian cancers
  • Have unexplained vaginal bleeding

You should speak to your doctor about using Norethisterone if you smoke, have diabetes, have high blood pressure, have asthma, kidney problems, epilepsy, varicose veins, cholasma, depression, high cholesterol, gallbladder disease, lupus (SLE) Crohn's disease, ulcerative colitis or hereditary angioedema. These conditions may not prevent you using Norethisterone, but may require extra surveillance or check-ups before you are prescribed a course of tablets.

Norethisterone can make you dizzy or drowsy so take extra care if you are planning to drive, swim or use machinery.

Other Medication Interactions

Certain medicines can cause an interaction, making either themselves or Norethisterone less effective. Always report any medicines you take to your doctor or pharmacist, even herbal remedies bought over-the-counter can have an adverse effect on hormonal medication.

Medicines known to cause interactions include:

  • Other hormonal products such as the contraceptive pill
  • Epilepsy medicines
  • Some antibiotics
  • Transplant anti-rejection drugs
  • Anti inflammatory medicines
  • Aminoglutethimide
  • St John's Wort - a herbal remedy used to treat depression

You should not stop taking a course of medicine in order to take Norethisterone. Speak to your doctor about alternatives.

Can you buy without a prescription?

Norethisterone is the only prescription period delay medication available to buy online in the UK. To obtain it you need to attend a consultation with your doctor for a prescription. This is due to the potentially serious interactions with other medications and side effects that you may experience if you're unsuitable.

How to buy Norethisterone

Once you have been prescribed Norethisterone by your doctor you can buy Norethisterone online after a quick online consultation.

Norethisterone is not available over-the-counter. This is to ensure your safety.

If you choose to buy period delay medication always do so from a reputable site. Regulated reputable sites that deliver genuine medication will always insist you complete an online medical consultation. If you are not required to do so, then the site is potentially unsafe.

All genuine branded medication you receive should be sent directly from a registered pharmacy after a consultation with a UK registered doctor. There are some black market sites that sell medication from abroad which are often sold at a low price, but their ingredients cannot be guaranteed and may be unsafe.

Norethisterone should always be medically prescribed. If you obtain it from a safe source you can enjoy the benefits of delayed periods and delayed PMS. This can significantly increase your quality of life and help you to not only enjoy occasions but to potentially achieve your best in exams, tests, work situations and sports.

Is it safe to order online?

When ordering from a certified online pharmacy, you can be ensured that your medication is safe. If the pharmacy doesn't ask you to complete essential health and medical question, however, this is a telltale sign that the website isn't certified. The website should also display clear signs that it is registered and approved by the relevant authorities. In the UK, this includes being registered by the MHRA and GMC.

All medication will be delivered in tamper proof packaging complete with the full patient leaflet, which confirms that the medication is clinically proven and highly effective.

All of the treatments that are available to buy online from Medilico are approved by the National Pharmacy Association .

What is included in the price?

When ordering Norethisterone period delay tablets online here at Medilico, this is an all-inclusive price including the prescription, consultation, medication and delivery. There aren't any hidden costs. The price of this period delay treatment won't adjust according to the dosage and quantity you have ordered, as this particular medication is only available to buy online in one dosage of 5mg and one quantity of 30 tablets.

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