Your Online Medical Consultation


Is your menstrual cycle regular and are you able to predict when your periods are due?

You need to start taking this medication 3 days before your period is due in order for it to be effective

Why do you want to delay your period?

E.g. going on holiday, sporting event, religious festival, as part of an ongoing treatment, other?

Do you ever suffer from vaginal bleeding when you are not menstruating (e.g. between your cycles)?


Are you over 35 years old AND a smoker?

There is a slightly increased risk of developing blood clots for women who smoke and are over 35 years old when using Norethisterone.

Is your BMI over 30?

Click here to find out your BMI

Do you have any allergies to any medication or substances?

Answer ‘no’ if this does not apply to you

Are you using any contraceptive pills or hormone injections?

Has a doctor or nurse ever advised you NOT to use hormonal contraceptives?

Are you taking any other medication, or have you recently finished a course of medication?

Please tell us what you are taking

This includes medication prescribed by your doctor, bought in the pharmacy or online, herbal supplements, recreations drugs

This includes tablets, patches, inhalers, injections, contraception and all other forms of medication

Answer ‘no’ if this does not apply to you

Have you ever been diagnosed with any of the following?

  • Asthma
  • Blood clots – deep vein thrombosis (DVT) in the legs or Pulmonary embolism (PE) in the lungs
  • Cancer of the breast or genital tract
  • Diabetes
  • Epilepsy
  • Heart attack or angina
  • Kidney disease
  • Liver problems (e.g. jaundice during pregnancy)
  • Mental health problems such as anxiety or depression
  • Migraine or severe headache
  • Porphyria
  • Sickle cell disease
  • Unexplained irregular vaginal bleeding

Do you suffer from any other medical problems?

Please provide details

This also includes previous admissions to the hospital or any surgeries

Answer ‘no’ if this does not apply to you

Do you have a family history of any medical conditions? Such as a blood cloth in the legs or lungs?

Please provide details of any medical conditions that may run in the family.

Answer ‘no’ if this does not apply to you

Are you pregnant or breast feeding, think you may be pregnant or planning to have a baby?


I am aware that I need to start taking this medication 3 days prior to the day I expect my period to start.

Period bleeding usually restarts 2-3 days after Norethisterone is stopped. It can sometimes restart earlier after stopping.

I understand that the chances of suffering from a blood clot may be slightly higher when taking a hormone medication like Norethisterone.

  • The following problems can increase the risk of developing a blood clot
  • Being very over weight
  • Having had previous blood clots in the legs or lungs
  • Being immobile for long periods of time (after an operation, or on a long-haul flight)
  • Having major surgery
  • Having suffered from repeated miscarriages


We strongly recommend that you inform your GP of any treatment you receive. Would you like e-Surgery to do this in your behalf?

Please write the name of the GP surgery you are registered at if you want us to let them know.

This will ensure that any new medication started by your GP will not interact with this treatment.

Answer ‘no’ if you do not want us to inform your GP surgery.

I agree to the following

  • I am 18 years of age or older
  • This treatment is for my use only
  • I confirm that I have understood all the questions asked and have answered all questions to the best of my knowledge.
  • I have read the patient information leaflet supplied with this medication
  • I will contact e-Surgery and inform my GP if I experience any side effects from this treatment or if there are any changes to my health
  • I have answered all questions truthfully and accurately.

I have read, understood and agree to abide by terms and conditions and privacy policy and cookie policy of e-Surgery

What is this?

Your answers form the basis of your medical consultation. It is important you are open and honest, so our doctors can ensure this medication safe and effective for you


Norethisterone is a medication used to delay periods by up to 17 days. After stopping your period should return in 2-3 days.

Choose from your desired treatment below, and complete a short questionnaire to help our GPs make sure this medication is safe for you to take. All prices include a private prescription from one of our UK registered GPs. 


Important Facts About Period Delay

Most frequent questions and answers about period delay tablets.

Period Delay Tablets are a prescription treatment, used to delay your next period for up to 17 days. They contain an ingredient called a progestogen, which is similar to the natural female hormone progesterone. 

Progestogen containing tablets are the most common form of period delay. 

Do NOT take period delay tablets if:

  • You are allergic to norethisterone or other similar hormone medicines, or any of the other ingredients of this medicine (listed in section 6)
  • You are pregnant, or think you might be pregnant. Your doctor may give you a pregnancy test before starting treatment or if you miss a period during treatment
  • You have now or have ever had any vaginal bleeding (not a period) for which your doctor could not find a cause.
  • If you or a member of your family have ever had a problem with blood clots, including deep vein thrombosis (DVT).
  • you have now or have had in the past, a heart attack or angina
  • You have liver problems.
  • If you have ever had a pregnancy where you had jaundice, or an itchy rash known as pemphigoid gestationis. This rash appears as small blisters on your abdomen.
  • You have severe generalised itching all over your body (pruritis)
  • You have a condition known as porphyria (a rare inherited blood disease).

e-Surgery offers period delay tablets for up to 17 days.

These are normally taken THREE times DAILY,  starting from 3 days before the expected onset of period. 

Always make sure you follow the directions given to you by the prescribing doctor. 

Your period should return after 2-3 days of stopping period delay pills. 

If it does not, or is unusually heavy or light please consult your GP. 

Psychiatric disorders

Some women using hormonal contraceptives including period delay pills 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.

Risk of Venous Thromboembolism (VTE)

All women have a small chance of having a blood clot in the veins of the leg, in the lung or other part of the body. The chances of getting a clot are very slightly higher if you are taking a hormone medicine. You are more likely to get a clot whether or not you are taking period delay tablets if you:

– are very overweight
– have systemic lupus erythematosus. (This is a condition where the immune system attacks healthy tissues, typically causing symptoms such as painful joints and muscles, tiredness, fever and rashes).
– have had a blood clot in the veins or lungs before
– have relatives who have had blood clots
– are unable to move for long periods of time (for example after an operation)
– have a serious injury or have major surgery
– have a history of repeated miscarriage.

Tell your doctor if you have just had an operation or if you are going to have an operation while taking period delay tablets. Section 4 of this leaflet (‘Possible side effects’) also has more information on the warning signs of blood clots.

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
This includes the following medicines, as the effect of period delay tablets may be altered when they are taken at the same time:

– 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 anti-inflammatory drugs (NSAIDs) for treating pain and inflammation – Medicines for high blood pressure.

Period delay tablets can also interfere with some laboratory tests, so tell your doctor if you are having any blood tests or hospital investigations.
Tell your doctor or pharmacist if you are taking any other medicines not listed above, including those bought without a prescription.

Like with all medication, there is a risk of side effects when taking period delay tablets. 

Very rarely, period delay tablets may cause a severe allergic reaction which can be life-threatening in some cases. You can get some or all of the following symptoms:

  • wheezing

  • difficulty breathing

  • feeling faint

  • swelling of the face or tongue

  • swelling of the hands and feet

  • intense itchy skin rash.

    If you think you are reacting badly to the medicine, get emergency medical help immediately.

For a full list of side effects associated with period delay tablets, read the patient information leaflet here. 

Learn More About Period Delay

Most frequent questions and answers about period delay

Sometimes it can be extremely inconvenient to have your period. There are two ways in which you can delay your period.

Norethisterone pills contain progesterone that stops the lining of your womb shedding, thus delaying your period.

Another method is to take two contraceptive pill packets back-to-back.

Norethisterone is safe for most women to use on a regular basis, but should not be used on a regular basis. If you have family history of blood clots, it may not be safe for you to use. Therefore, you should always check with your doctor/pharmacist before taking norethisterone pills.

It is a safe common practice to take two packets back-to-back. You should not take more than three contraceptive pill packets back-to-back.

Norethisterone pills contain progesterone that stops the lining of your womb shedding, thus delaying your period.

Most women find norethisterone tablets effective; however, some women find that have ‘spotting’ or ‘breakthrough bleeding’. This can also be caused by starting to take the period delay pills less than three days before your period is due.

Norethisterone tablets must be taken three days before your period is due for a maximum of 20 days (delaying your period for a maximum of 17 days). 

Contraceptive pills should be taken for a maximum of three packets back-to-back.

You can find out more information about delaying your period on the NHS website.

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