How Norethisterone Works to Delay Your Period
Menstruation is a natural part of life for many women, but there are times when you may want to delay your period for special events or personal reasons. Whether you're heading to a holiday, preparing for a wedding, or just need a little more time, delaying your period is entirely possible with the right medication.
Norethisterone, a hormone-based pill, is one of the most effective and commonly used treatments to help delay your period. In this article, we will explain how Norethisterone works, how to take it, the potential side effects, and the best way to use it to safely delay your period.
What is Norethisterone?
Norethisterone is a synthetic hormone similar to the natural hormone progesterone. This hormone plays an essential role in regulating the menstrual cycle. It helps control ovulation and prepares the lining of the womb (uterus) for a possible pregnancy. Norethisterone belongs to a class of drugs called progestogens, and it is used in various treatments, including for period delay and managing conditions like endometriosis or menopausal symptoms.
In the case of a period delay, Norethisterone works by maintaining the levels of progesterone in your body. This helps to delay the shedding of the uterine lining, thus postponing your period. It can give you the flexibility to adjust the timing of your period when needed.
How Does Norethisterone Help Delay Your Period?
Norethisterone is most commonly used as a "period delay pill" to move the timing of your menstrual cycle. To delay your period, you need to start taking Norethisterone three days before the expected start of your period. You should continue taking it for up to two weeks to prevent your period from beginning. Once you stop taking the pill, your period will typically start within 2-3 days.
This action works by mimicking the effects of progesterone, a hormone that is naturally present in your body during the second half of your menstrual cycle. By maintaining higher progesterone levels, Norethisterone prevents the uterine lining from shedding, thus delaying your period until you decide to stop taking it.
How to Take Norethisterone for Period Delay
When using Norethisterone to delay your period, it's essential to follow the instructions carefully. The usual method is to take one tablet of Norethisterone 3-4 days before your expected period starts. You will continue taking one tablet a day for the duration of the delay, which can range from 2 to 3 weeks. It’s important to remember that Norethisterone is typically not used to delay your period indefinitely. The pill only works as long as you continue to take it. Once you stop, your period will return.
Here are some key guidelines to follow:
- Start taking the pill three days before your period is due. This allows enough time for the medication to take effect.
- Take one tablet every day, preferably with a meal and with a glass of water. Do not chew the tablet.
- Continue taking the pill for up to two weeks if you need to delay your period that long.
- Once you stop taking Norethisterone, expect your period to begin within a few days.
Norethisterone Dosage for Period Delay
The dosage of Norethisterone for period delay can vary depending on your specific needs and the advice from our pharmacist. It's essential to follow the dosage instructions provided by your healthcare provider to ensure effectiveness and minimise the risk of side effects.
Side Effects of Norethisterone
While Norethisterone is effective for delaying periods, like any medication, it may cause some side effects. These side effects are generally rare and mild but can vary from person to person. Common side effects of Norethisterone include:
- Nausea
- Headaches
- Breast tenderness
- Mood changes (such as feeling irritable or depressed)
- Breakthrough bleeding or spotting
- Weight gain or fluid retention
In rare cases, some women may experience more serious side effects, such as:
- Severe abdominal pain
- Jaundice (yellowing of the skin or eyes)
- Difficulty breathing or chest pain
- Swelling of the legs or feet
How to Delay Your Period Safely with Norethisterone
Delaying your period with Norethisterone is generally considered safe when taken as directed, but there are a few important things to keep in mind to ensure you use the medication correctly:
- Consult a professional before using Norethisterone to make sure it is suitable for your specific needs. Certain health conditions, such as a history of blood clots, may prevent you from taking Norethisterone.
- Take the pill exactly as instructed. Do not take more or less than the prescribed dosage, as this may affect the pill’s effectiveness and increase the risk of side effects.
- Consider potential side effects. While side effects are usually mild, it's still important to monitor your body’s response to the medication.
- Don’t use Norethisterone for long-term period delay. This medication is not designed for continuous use and should only be used for short-term period delay.
When Should You Not Use Norethisterone?
Although Norethisterone is a widely used medication, it may not be suitable for everyone. You should avoid using Norethisterone if you:
- Are pregnant or breastfeeding
- Have a history of blood clots or stroke
- Have liver disease or jaundice
- Have unexplained vaginal bleeding
- Are allergic to any of the ingredients in Norethisterone
Need to Postpone Your Period? Find the Solution Here
Norethisterone is an effective and safe option for women who want to delay their period for a short period of time. By taking Norethisterone tablets a few days before your period is due, you can prevent menstruation for up to two weeks. However, it’s important to follow the dosage instructions and consult with a healthcare provider to ensure that the medication is appropriate for your health.
If you're looking for a reliable source to purchase Norethisterone or other medications online, you can shop medicines online at Pharmacy Planet. We offer a wide range of pharmaceutical products with quick and convenient delivery.

Authored By
HARMINDER ‘HARMY’ KAUR
BSc(hons) Pharmacy
GPhC Number: 2061107

Reviewed By
GURDEV SEHMI
BSc Pharm, MRPharmS, Independent Prescriber, Superintendent Pharmacist, Clinical Lead
GPhC Number: 2050925