Primolut-N
✅ Regulates menstrual cycle
✅ Treats endometriosis symptoms
✅ Controls abnormal bleeding
✅ Relieves menstrual pain
✅ Prevents miscarriage
Primolut-N contains Norethisterone.
✓ Medically reviewed by Morgan Ellis — Pharmacy Researcher · 8 years experience · Last reviewed: May 2026
Quick Answer — What is Primolut-N?
Primolut-N is a 5 mg norethisterone tablet used to delay periods, treat irregular menstruation, and manage endometriosis or abnormal uterine bleeding. Taken 3 days before an expected period, it postpones bleeding until you stop the tablets. Primolut-N is a synthetic progestogen manufactured by Bayer.
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What Is Primolut-N?
Primolut-N is a hormonal medication containing Norethisterone (Norethindrone) 5 mg, manufactured by Bayer — one of the world’s largest pharmaceutical companies. It is primarily used to delay periods, treat irregular menstruation, endometriosis, and abnormal uterine bleeding.
Norethisterone is a synthetic progestogen (progesterone analog) that mimics the effects of the natural hormone progesterone. By maintaining elevated progesterone levels, Primolut-N prevents the uterine lining from shedding, which delays or regulates menstruation.
Uses of Primolut-N
| Condition | How Primolut-N Helps | Typical Dose |
|---|---|---|
| Period delay | Prevents uterine lining shedding to postpone menstruation for travel, events, or holidays | 5 mg 3× daily, starting 3 days before expected period |
| Irregular periods | Regulates the menstrual cycle by establishing predictable withdrawal bleeds | 5 mg 1–2× daily for days 19–26 of the cycle |
| Heavy menstrual bleeding (menorrhagia) | Reduces excessive blood loss by stabilizing the uterine lining | 5 mg 3× daily for 10 days to stop acute bleeding |
| Endometriosis | Suppresses endometrial tissue growth, reducing pain and lesion progression | 5 mg 2–3× daily continuously for 4–6 months |
| Premenstrual syndrome (PMS) | Alleviates PMS symptoms by stabilizing hormonal fluctuations | 5 mg 2–3× daily during the luteal phase |
| Dysfunctional uterine bleeding | Stops abnormal bleeding unrelated to structural causes | As prescribed by a doctor |
How to Use Primolut-N to Delay Your Period
This is the most common use. Follow these steps:
- Start taking Primolut-N 3 days before your period is expected to begin.
- Take one 5 mg tablet three times daily (morning, afternoon, evening) with water.
- Continue taking the tablets for as long as you want to delay your period (up to 10–14 days is generally considered safe).
- Your period will start 2–3 days after you stop taking the tablets.
Important: Primolut-N is NOT a contraceptive. It will not prevent pregnancy. You must use separate contraception if needed.
How Primolut-N Works
Norethisterone is a synthetic progestogen that binds to progesterone receptors in the uterus. During a normal menstrual cycle, progesterone levels rise after ovulation to maintain the uterine lining. When progesterone drops (if pregnancy doesn’t occur), the lining sheds — this is your period.
By taking Primolut-N, you artificially maintain high progesterone levels, which keeps the uterine lining intact and delays menstruation. When you stop taking the tablets, progesterone levels fall and a withdrawal bleed (period) occurs within 2–3 days.
Side Effects
Common
- Headache
- Nausea
- Breast tenderness
- Bloating and water retention
- Mood changes
- Spotting or breakthrough bleeding
- Changes in libido
Uncommon but Serious
- Blood clots (DVT/PE) — Norethisterone is converted to ethinylestradiol in the body, slightly increasing clot risk. Seek immediate medical attention for sudden leg pain/swelling, chest pain, or breathlessness.
- Jaundice — Stop taking Primolut-N if you develop yellowing of the skin or eyes.
- Severe headache or migraine with aura — Stop immediately and consult a doctor.
Who Should NOT Take Primolut-N
- Women who are pregnant or suspect pregnancy
- Women with a history of blood clots, stroke, or heart attack
- Women with liver disease or liver tumors
- Women with undiagnosed vaginal bleeding
- Women with breast cancer or other hormone-sensitive cancers
- Women with severe diabetes with vascular complications
Storage
Store below 25°C in a cool, dry place away from direct sunlight. Keep out of reach of children. Do not use after the expiration date.
Frequently Asked Questions
What is Primolut-N used for?
Primolut-N (Norethisterone 5 mg) is used to delay periods, treat irregular menstruation, heavy periods, endometriosis, and PMS. It is most commonly used by women who want to postpone their period for holidays, travel, or special events.
How many days before my period should I start Primolut-N?
Start taking Primolut-N 3 days before your expected period. Take 5 mg three times daily. Your period will begin 2–3 days after you stop the tablets.
How long can I delay my period with Primolut-N?
Most doctors recommend delaying your period for no more than 10–14 days per cycle. Longer delays should only be done under medical advice.
Is Primolut-N a contraceptive?
No. Primolut-N is not a birth control pill and will not prevent pregnancy. You need to use separate contraception if you are sexually active and do not wish to conceive.
Will Primolut-N affect my fertility?
No. Primolut-N does not affect long-term fertility. Your normal menstrual cycle and ovulation return shortly after you stop taking the tablets.
Can I take Primolut-N while breastfeeding?
Norethisterone may pass into breast milk in small amounts. Consult your doctor before use. Progestogen-only medications are generally considered safer during breastfeeding than combined hormonal products.
Do I need a prescription for Primolut-N?
At MedsBase, you can order Primolut-N without a prescription, with discreet packaging. We recommend consulting a healthcare provider before first use.
Disclaimer
Our sole intention is to ensure that its consumers get information that is expert-reviewed, accurate, and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover all possible side effects, drug interactions, or warnings or alerts. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
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