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  1. Home
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  3. Nortas CR Tablet 10's

Nortas CR Tablet 10's, Pack of 10 TabletS
Nortas CR Tablet 10's, Pack of 10 TabletS
Non returnable*
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Composition :

NORETHISTERONE-10MG

Manufacturer/Marketer :

Intas Pharmaceuticals Ltd

Consume Type :

ORAL

Return Policy :

Not Returnable

Expires on or after :

About Nortas CR Tablet

Nortas CR Tablet belongs to the class of medicines called progestogens used to treat heavy, painful, or irregular periods, premenstrual syndrome (PMS), and endometriosis. Additionally, Nortas CR Tablet may be used in the treatment of breast cancer. Endometriosis is a disorder in which the uterus's tissue lining (endometrium) grows on the ovaries, bowel, or tissues lining the pelvis. The most common symptom is pelvic pain.

Nortas CR Tablet contains Norethisterone that works by mimicking the activity of the natural hormone progesterone. Thereby, it restores hormone levels in the body and regulates the growth and shedding of the womb lining. Thus, it helps to treat menstrual disorders.

Take Nortas CR Tablet as prescribed by your doctor. You are advised to take Nortas CR Tablet for as long as your doctor has prescribed it for you based on your medical condition. In some cases, you may experience unusual vaginal bleeding or spotting, dizziness, dry mouth, constipation, nausea, diarrhea, headache, breast pain, and tenderness. Most of these side effects of Nortas CR Tablet do not require medical attention and gradually resolve over time. However, if the side effects persist or worsen, please consult your doctor.

If you are allergic to Nortas CR Tablet or any other medicines, please tell your doctor. Nortas CR Tablet is not recommended for pregnant women as it may harm the unborn baby. If you are breastfeeding, consult a doctor before taking Nortas CR Tablet . It is advised to use effective non-hormonal contraceptives such as condoms to avoid pregnancy while taking Nortas CR Tablet . You are advised to stop smoking while taking Nortas CR Tablet as it may increase the risk of adverse effects.

Uses of Nortas CR Tablet

Heavy, painful or irregular periods, Premenstrual syndrome (PMS), Endometriosis, Breast cancer

Directions for Use

Take Nortas CR Tablet with or without food as advised by your doctor. Swallow it as a whole with a glass of water. Do not crush, chew or break it.

Medicinal Benefits

Nortas CR Tablet contains Norethisterone, a synthetic hormone that mimics the activity of the natural hormone progesterone. Thereby, it restores hormone levels in the body and regulates the growth and shedding of the womb lining. Thus, it helps to treat menstrual disorders.

Storage

Store in a cool and dry place away from sunlight

Drug Warnings

If you are allergic to Nortas CR Tablet or any other medicines, please tell your doctor. Nortas CR Tablet is not recommended for pregnant women as it may harm an unborn baby. If you are breastfeeding, consult a doctor before taking Nortas CR Tablet . It is advised to use effective non-hormonal contraceptives such as condoms to avoid pregnancy while taking Nortas CR Tablet . You are advised to stop smoking while taking Nortas CR Tablet as it may increase the risk of adverse effects. If you are about to undergo any surgery, please inform your doctor that you are taking Nortas CR Tablet as it may increase the effect of certain anesthetics. If you experience sudden shortness of breath, rapid heartbeat, sudden, severe, sharp pain in the chest, or cough up blood, stop taking Nortas CR Tablet and consult a doctor immediately as these might be signs of a blood clot in the lungs.

Drug-Drug Interactions

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NorethisteroneRifampicin
Severe
NorethisteronePhenobarbital
Severe

Drug-Drug Interactions

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NorethisteroneRifampicin
Severe
How does the drug interact with Nortas CR Tablet:
Taking Nortas CR Tablet with rifampicin can decrease the blood levels of Nortas CR Tablet, which may make the medication less effective.

How to manage the interaction:
Although there is an interaction between Nortas CR Tablet and rifampicin, they can be taken together if prescribed by a doctor. However, if you experience abnormal bleeding, contact your doctor immediately. Do not discontinue any medications without consulting a doctor.
NorethisteronePhenobarbital
Severe
How does the drug interact with Nortas CR Tablet:
The combined use of Nortas CR Tablet and phenobarbital can reduce the blood levels and effects of Nortas CR Tablet.

How to manage the interaction:
Although taking phenobarbital and Nortas CR Tablet together can result in an interaction, it can be taken if a doctor has prescribed it. If you experience any symptoms like abnormal bleeding, consult the doctor immediately. Do not stop using any medications without a doctor's advice.
NorethisteroneAcitretin
Severe
How does the drug interact with Nortas CR Tablet:
Coadministration of Acitretin with Nortas CR Tablet may interfere with the contraceptive effect of Nortas CR Tablet.

How to manage the interaction:
Acitretin and Nortas CR Tablet should be used together only if prescribed by your doctor. Use of at least two methods of effective contraception is mandatory during acitretin therapy and for at least 3 years after stopping therapy.
NorethisteroneDabrafenib
Severe
How does the drug interact with Nortas CR Tablet:
Coadministration of Nortas CR Tablet with Dabrafenib can reduce the metabolism and decrease the levels of Nortas CR Tablet in the body.

How to manage the interaction:
Taking Nortas CR Tablet with Dabrafenib together can result in an interaction, it can be taken if your doctor has advised it. However, if you notice any symptoms of hot flashes, vaginal dryness, or abnormal bleeding, contact a doctor immediately. Do not stop using any medications without talking to a doctor.
NorethisteroneTelaprevir
Severe
How does the drug interact with Nortas CR Tablet:
Using Telaprevir and Nortas CR Tablet together can increase risk of unintended pregnancy and decrease the effectiveness of norethindrone.

How to manage the interaction:
Combining Telaprevir with Nortas CR Tablet can result in an interaction, but it can be taken if your doctor has advised it. However, if you experience any symptoms like increased hot flashes, vaginal dryness, or menstrual abnormalities, contact the doctor immediately. Do not discontinue any medications without consulting a doctor.
NorethisteroneTopiramate
Severe
How does the drug interact with Nortas CR Tablet:
Coadministration of Nortas CR Tablet with Topiramate can reduce the blood levels and effects of norethindrone in the body. This increases the risk of severe bleeding and unintended pregnancy.

How to manage the interaction:
Taking Nortas CR Tablet and topiramate together can result in an interaction; it can be taken if your doctor has advised it. However, if you notice any symptoms of abnormal bleeding, hot flashes or vaginal dryness, you should contact a doctor immediately. Do not stop using any medications without talking to a doctor.
NorethisteroneRifapentine
Severe
How does the drug interact with Nortas CR Tablet:
Combining Rifapentine and norethindrone reduces the blood levels and effects of norethindrone and increases the risk of bleeding and unintended pregnancy.

How to manage the interaction:
Although there is a possible interaction between Nortas CR Tablet and Rifapentine, you can take these medicines together if prescribed by your doctor. If you're having any of these symptoms like unexpected bleeding, abnormal bleeding, it's important to reach out to a doctor right away. Do not discontinue any medications without consulting a doctor.
NorethisteroneBosentan
Severe
How does the drug interact with Nortas CR Tablet:
Co-administration of Nortas CR Tablet with Bosentan can reduce the blood levels and effects of norethindrone.

How to manage the interaction:
Taking Nortas CR Tablet with Bosentan together can result in an interaction, but it can be taken if your doctor has advised it. Do not stop using any medications without talking to a doctor.
NorethisteroneBoceprevir
Severe
How does the drug interact with Nortas CR Tablet:
Using Boceprevir and Nortas CR Tablet together can reduce the blood levels and decrease the effectiveness of norethindrone.

How to manage the interaction:
Combining Boceprevir with Nortas CR Tablet can result in an interaction, but it can be taken if your doctor has advised it. However, if you experience any symptoms like increased hot flashes, vaginal dryness, or menstrual abnormalities, abnormal bleeding, contact the doctor immediately. Do not discontinue any medications without consulting a doctor.
NorethisteronePrimidone
Severe
How does the drug interact with Nortas CR Tablet:
Coadministration of Nortas CR Tablet and primidone can reduce the blood levels and effects of Nortas CR Tablet and increase the risk of bleeding.

How to manage the interaction:
Although there is an interaction between Nortas CR Tablet and Primidone, they can be taken together if prescribed by a doctor. However, if you experience abnormal bleeding, contact a doctor immediately. Do not discontinue any medications without consulting a doctor.

Drug-Food Interactions

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No Drug - Food interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Food Interactions

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Diet & Lifestyle Advise

  • Avoid fried and processed foods.
  • Include fiber-rich foods like whole grains, fruits, and vegetables in your diet.
  • Avoid refined carbohydrates that are high in sugars.
  • Replace animal proteins (like eggs, fish, and meat) with vegetable protein sources (nuts, seeds, and beans).
  • Avoid drinking excess alcohol or caffeinated drinks as they can worsen the symptoms.
  • Maintain a healthy weight, do moderate exercise regularly.
  • Avoid smoking and alcohol intake.

Habit Forming

No

Therapeutic Class

PROGESTIN

Nortas CR Tablet Substitute

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Author Details

Veda MaddalaDoctor badge

Written By

Veda Maddala

M Pharmacy

Sureshvarma D

Reviewed By

Sureshvarma D

MPharma

Last Updated

Jul 8, 2025 | 9:39 AM IST

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Drug-Diseases Interactions

verifiedApollotooltip
No Drug - Disease interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Diseases Interactions

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FAQs

Nortas CR Tablet contains Norethisterone, a synthetic hormone that works by mimicking the activity of the natural hormone progesterone. Thereby, it restores hormone levels in the body and regulates the growth and shedding of the womb lining. Thus, it helps to treat menstrual disorders.

Nortas CR Tablet may be used to delay periods. Nortas CR Tablet keeps progesterone levels high and prevents shedding of the womb lining. However, please consult a doctor before using Nortas CR Tablet .

Nortas CR Tablet may increase the risk of a blood clot in the veins of the leg, especially if you are overweight, smoking, or have a history of a blood clot in the lungs or veins, repeated miscarriage or have major surgery, serious injury, or systemic lupus erythematosus (autoimmune disease). Therefore, please inform your doctor if you have any of these conditions before taking Nortas CR Tablet .

You are not recommended to take Nortas CR Tablet with rifampicin as it may decrease the levels of Nortas CR Tablet in blood and reduce its effectiveness. However, please consult a doctor before taking Nortas CR Tablet with other medicines.

Periods usually resume within 3 days of discontinuing Nortas CR Tablet . However, please consult a doctor if you have any concerns regarding this.

Nortas CR Tablet may cause changes in blood sugar levels. Therefore, it is advised to regularly monitor blood sugar levels while taking Nortas CR Tablet and inform your doctor if you have diabetes before taking Nortas CR Tablet .

Drug-Drug Interactions Checker List

  • CARBAMAZEPINE
  • PHENYTOIN
  • NELFINAVIR
  • RITONAVIR
  • AMINOGLUTETHIMIDE
  • COTRIMOXAZOLE
  • RIFAMPICIN
  • TETRACYCLINE
  • CICLOSPORIN

Special Advise

  • Nortas CR Tablet may interfere with certain laboratory tests. Therefore, inform your doctor that you are taking Nortas CR Tablet before undergoing any tests.

Disease/Condition Glossary

Endometriosis: It is a disorder in which the tissue lining the uterus (endometrium) grows on the ovaries, bowel, or tissues lining the pelvis. The most common symptom is pelvic pain. Other symptoms of endometriosis include lower back pain, painful periods, heavy menstrual bleeding, pain following sexual intercourse, or discomfort with bowel movements. 

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