Regestrone Cr Tablet 10

Torrent Pharmaceuticals Ltd.

Strip of 10 Units

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MRP ~~₹253.75~~

₹200.46

₹25.38/Units

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Composition

Norethisterone (10 Mg)

Regestrone CR Tablet is used to manage menstrual issues and other conditions linked to hormonal imbalances. It acts as a synthetic progestogen hormone that helps regulate conditions like endometriosis and premenstrual syndrome (PMS).

Furthermore, this medicine is used to help regulate your cycle, manage abnormal uterine bleeding, and delay menstruation when medically indicated.

Please take this medicine exactly as your doctor tells you. It is essential to let them know about your full health history and to report any side effects, such as nausea or unusual bleeding, right away.

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Regestrone CR Tablet is used to manage heavy, painful, or irregular menstrual bleeding, premenstrual syndrome (PMS), endometriosis, and amenorrhea (absence of menstrual periods). It also helps with certain types of breast cancer.

Here's how you should take Regestrone CR Tablet:

Swallow the tablet whole with water. Do not crush or chew it.
You can take this medicine with or without food.
Do not exceed the recommended dose without consulting your do
ctor.
Always consult your doctor before stopping this medicine to avoid any unwanted side effects.

Regestrone CR Tablet is taken orally.

Regestrone CR Tablet may cause nausea, vomiting, headache, dizziness, irregular vaginal bleeding, changes in menstrual flow, and mood swings. Consult your doctor if symptoms persist.

Managing the Side Effects:

Most side effects are temporary and generally harmless, which resolve upon discontinuing the use of Regestrone CR Tablet. However, if you experience any serious side effects or worsening of any of the symptoms, please consult your doctor.

Here are some general guidelines for managing common side effects:

Nausea and vomiting: Try taking Regestrone CR Tablet with food or milk.
Headache and dizziness: Consider taking this medicine at night if it causes you dizziness or headaches during the day.

Regestrone CR Tablet contains norethisterone (10 mg), which acts on your body as follows:

Regulates endometrium growth: Norethisterone regulates the growth and shedding of the endometrium, which is the lining of your uterus.
Suppresses ovulation: One of its actions is to suppress ovulation, which means it prevents the release of an egg from your ovaries during your menstrual cycle.
Alters cervical mucus: This medicine also changes the consistency of cervical mucus, making it thicker and thus less permeable to sperm.
Restoring hormonal balance: By imitating the effects of progesterone, a hormone naturally found in your body, norethisterone helps restore hormonal balance.

Pregnancy

Regestrone CR Tablet is contraindicated during pregnancy. If you're pregnant or planning to conceive, consult your doctor before starting this medicine.

Breastfeeding

While it's generally considered safe for breastfeeding mothers, caution is advised when taking Regestrone CR Tablet as it may pass into breast milk. Consult your doctor before starting this medicine.

Alcohol

While there's no known interaction with alcohol, it's wise to be cautious. Consult your doctor if you regularly consume alcohol.

Liver

Consult your doctor before taking Regestrone CR Tablet if you have liver health issues. This medicine is not recommended for severe liver diseases.

Kidney

Caution is advised while taking Regestrone CR Tablet if you have kidney health issues. Consult your doctor before starting this medicine.

Using Machines & Driving

There's no known effect of Regestrone CR Tablet on your ability to drive or operate machinery. However, if you experience side effects like dizziness, avoid driving or operating heavy machinery.

Allergy

If you have known hypersensitivity to norethisterone or any other ingredients in Regestrone CR Tablet, avoid using this medicine. Make sure to let your doctor know about any allergies before starting this medication.

Children

Regestrone CR Tablet is generally not given to children under 18 years of age. Always consult with your doctor before giving any medicine to a child.

Older Patients

Older patients should take Regestrone CR Tablet under medical supervision as they may be more susceptible to its side effects. Caution is advised if patients are above 70 years of age due to potential liver and kidney issues. Your doctor will guide you based on your health status.

Drug-Drug Interactions

Regestrone CR Tablet interacts with the following medicines:

Anticonvulsants: Medicines like carbamazepine and phenytoin may interact with this medicine, potentially altering the hormonal effect of the tablet.
Antibiotics: When taken with Regestrone CR Tablet, antibiotics like rifampicin and griseofulvin can reduce the effectiveness of the tablet.
Antiretrovirals: Medicines such as ritonavir and nelfinavir could potentially increase the risk of side effects when taken with this medicine.

Drug-Food Interactions

Certain foods may impact the effectiveness of Regestrone CR Tablet. As each person's dietary needs and restrictions are different, it's essential to consult your doctor for specific advice.

Drug-Disease Interactions

Regestrone CR Tablet interacts with the following diseases:

Severe liver disease: This medicine can exacerbate liver disease, making it necessary to monitor liver function closely when on this medication.
Venous thromboembolism: Patients with a history of venous thromboembolism might experience an increase in clotting due to this medicine.
Breast cancer: Due to its hormonal action, Regestrone CR Tablet could potentially stimulate breast cancer cells in patients with known or suspected breast cancer.

Daily Dose

You should take the daily dose of Regestrone CR Tablet as prescribed by your doctor. The dosage depends your health condition and how you respond to the medicine. Always stick to the prescribed dosage, and never exceed it without consulting your doctor.

Over Dose

If you accidentally take more than the recommended amount of Regestrone CR Tablet, you might feel nauseous or start vomiting, and you could experience unusual vaginal bleeding. If these symptoms occur or worsen, inform your doctor.

Missed Dose

If you forget to take your regular dose of Regestrone CR Tablet, take it as soon as you remember. If it's nearly time for your next dose, skip that and return to your regular schedule. Don't increase the dosage without consulting your doctor.

Store Regestrone CR Tablet in a cool and dry place, ideally below 25 degrees Celsius.
Keep it out of direct sunlight and avoid exposure to moisture.
Keep this medicine out of reach of children.

If you're managing heavy, painful, or irregular menstrual bleeding with Regestrone CR Tablet, try to include iron-rich foods like spinach, lentils, and red meat in your diet. This helps replenish iron lost during periods.
For conditions like endometriosis and premenstrual syndrome, practice stress management techniques such as yoga and meditation.

Fact Box

Available Dosage Types	Tablet CR
Habit Forming	No
Ailment	Menstrual Disorders, Endometriosis, Certain Breast Cancers
Drug Category	Synthetic Progestogen
Therapeutic Category	Hormonal Medicine

What is Regestrone CR tablet used for?

Regestrone CR Tablet is used to manage menstrual and gynaecological disorders like heavy periods, premenstrual syndrome, endometriosis, and absence of periods.

How does Regestrone CR Tablet work?

This medicine works by mimicking a hormone called progesterone and helps to regulate the growth and shedding of the womb's lining and suppress ovulation.

How should I take Regestrone CR Tablet?

Regestrone CR Tablet is taken orally as per your doctor's recommedation.

What are the side effects of Regestrone CR Tablet?

Common side effects include nausea, headache, irregular vaginal bleeding, changes in menstrual flow, and mood swings.

Can I take Regestrone CR Tablet if I am pregnant?

No, Regestrone CR Tablet is not recommended during pregnancy.

Can I take other medicines while taking Regestrone CR Tablet?

Yes, but some medicines can interact with it. Hence, it's crucial to inform your doctor about all medicines and supplements you're currently taking.

What should I do if I overdose on Regestrone CR Tablet?

If you overdose on this medicine, you may feel nauseated or vomit and experience vaginal bleeding. Seek immediate medical attention if these symptoms occur.

Last Updated On 16 Mar. 2026 | 8:02AM (IST)

Certified Content

Written by

Dr. Michelle Frank

Medical Content Writer | 10 years

Doctor of Medicine

Reviewed by

Dr. Mandeep Chadha

Lead Medical Content Reviewer | 12 years

MBBS, DNB (OBGY)

Check out Editorial Policy

Manufacturer details

Torrent House, Off. Ashram Road, Ahmedabad - 380009, Gujarat, India

Country of origin: INDIA

Expiry on or after: July 2026

In case of any issues, contact us:

support@truemeds.in|09240250346

Address: 6th floor, Urmi Corporate Park Solaris, Saki Vihar Road, Andheri East, Mumbai 400071

References

U.S. Food and Drug Administration. (2001, May 25). Center for drug evaluation and research. https://www.accessdata.fda.gov/drugsatfda_docs/anda/2001/75951_Norethindrone%20Acetate_Approv.pdf.
DrugBank Online. (2024, May 1). Norethisterone. https://go.drugbank.com/drugs/DB00717.
electronic medicines compendium. (2017, Feb 21). Norethisterone 5mg tablets. https://www.medicines.org.uk/emc/product/1494/smpc.
AHFS Patient Medication Information: National Library of Medicine (US). (2022, Mar 15). Norethindrone. https://medlineplus.gov/druginfo/meds/a604034.html.
Vilk Ayalon, N., Segev, L., Samson, A. O., Yagel, S., Cohen, S. M., Green, T., & Hochler, H. (2022). Norethisterone reduces vaginal bleeding caused by progesterone-only birth control pills. Journal of clinical medicine, 11(12), 3389. https://doi.org/10.3390/jcm11123389.
Bryant, G., Scott, I., & Worrall, A. (2000). Is norethisterone a lifestyle drug? Health is not merely the absence of disease. BMJ (Clinical research ed.), 320(7249), 1605

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Disclaimer

We, at Truemeds make a diligent attempt to deliver accurate, expert- drafted and thoroughly reviewed medicine related information to our consumers. However, it should, by no means, be considered a substitute for prescription from a certified doctor or a trustworthy doctor-patient relationship. In fact we detest any form of self medication without expert advice. The sole purpose of the information on our portal is to educate our consumers, which helps improve the communication between a doctor and a patient. The information by no means is complete in its entirety and should not be used to diagnose or treat any medical condition. No amount of information can replace the experience and expertise of a doctor, therefore his/her advice always holds priority and should be followed appropriately.

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