What is Norethisterone?
Norethisterone is a synthetic version of progestogen, which is a hormone naturally produced in the body. The branded version of this medication is called Utovlan. Norethisterone can be used by women to delay their period (and stop ovulation from occurring) in special circumstances.
How does Norethisterone work?
Progestogens are hormones that sustain the lining of the uterus. The levels of progestogens usually fall before a period is due causing the lining of the uterus to shed and menstruation to start. Norethisterone can therefore help maintain the lining of the uterus and delay it from shedding and causing a menstrual period.
How do I take Norethisterone?
In special cases e.g. travel, Norethestirone can be used to postpone menstruation by taking it at a low 5mg dose three times a day, starting three days before the expected onset of menstruation. A normal period should take place two to three days after stopping the medication. It is important to note that Norethisterone tablets taken this way will not exert any contraceptive action.
What are the cautions related to using Norethisterone?
Although Norethisterone is commonly used for period delay, it is important to check if the medication is suitable for you. Norethisterone should not be used by people suffering with certain conditions or those using certain medications. Long-term use of Norethisterone is not recommended as it can disturb hormonal balance and result in adverse effects. You should always read the patient information leaflet (PIL) for Norethisterone before taking this medication to ensure it is safe for you to use.
Can I use Norethisterone for Period Delay if I’m using contraceptive tablets?
Although some contraceptives tablets can be used as means for period delay, they would need to be taken for up to a month. Women taking ‘the pill’ (combined oral contraceptive pill) do not have normal periods and can control their periods through omitting what is called a ‘pill free period’ and should not take Norethisterone tablets for period delay. If you are taking oral contraceptives we recommend that you speak to your doctor for alternate methods for delaying your period.
What are the side effects of Norethisterone?
Like all medicines, Norethisterone can cause side effects, although not everyone will experience them.
Although side effects rarely occur at this dose, please stop taking this medication and tell your doctor immediately if you develop:
- A rise in blood pressure
- Jaundice
- Migraine type headaches
Norethisterone side effects also include feeling dizzy, drowsy or affect your vision so please make sure you are not affected before driving or operating machinery. For further information about the side-effects associated with this medication please refer to the patient information leaflet or contact us.
