Product image of Norcolut (Norethisterone) supplied by GNH India

Norcolut

Active Ingredient:
Norethisterone
Origin:
EU

Norcolut (Norethisterone)

Norethisterone, the active ingredient in Norcolut, is a progestogen presented as an oral tablet for oral use. It is employed in hormonal contraception and the management of various menstrual disorders, including heavy bleeding, irregular cycles, endometriosis, and secondary amenorrhea in women of reproductive age, and can be prescribed by qualified healthcare professionals.

GNH India supplies Norcolut as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, and procurement teams in both public and private sectors. Our distribution network ensures timely delivery and regulatory compliance across EU and other markets.

Manufacturer / TM Owner

Gedeon Richter Plc.

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Indications & Clinical Uses

Norethisterone is used to manage hormonal and menstrual conditions by modulating progesterone activity.

  • Contraception: prevents ovulation and stabilizes the endometrium, providing reliable birth control.
  • Heavy menstrual bleeding: reduces uterine lining thickness, leading to lighter menstrual flow.
  • Irregular menstrual cycles: helps regularize cycle length and flow patterns.
  • Endometriosis: suppresses ectopic endometrial tissue growth, alleviating pain.
  • Secondary amenorrhea: induces withdrawal bleeding by restoring hormonal balance.

How It Works

  • Norethisterone is a synthetic progestogen that binds selectively to progesterone receptors in the hypothalamus, pituitary and uterine tissue. Binding suppresses the mid‑cycle luteinising hormone surge, thereby inhibiting ovulation. In the endometrium it induces a secretory transformation that reduces proliferative activity and limits menstrual bleeding.

Side Effects

Norethisterone may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Nausea
  • Breast tenderness
  • Headache
  • Weight gain or fluid retention
  • Mood changes or irritability
  • Breakthrough or spotting bleeding

Serious or Rare Side Effects

  • Venous thromboembolism (deep vein thrombosis, pulmonary embolism)
  • Hepatic adenoma or other liver tumors
  • Severe allergic reaction (anaphylaxis, skin rash)
  • Depression or worsening of existing psychiatric disorders
  • Hypertension or cardiovascular events

Precautions & Warnings

When prescribing Norcolut, clinicians should evaluate several safety considerations.

  • Assess risk of thromboembolism: review personal or family history of clotting disorders.
  • Monitor hepatic function: consider baseline liver enzymes in patients with liver disease.
  • Evaluate cardiovascular status: avoid in uncontrolled hypertension or active cardiovascular disease.
  • Consider mood and psychiatric history: norethisterone may exacerbate depression or anxiety.
  • Review concomitant medications: interactions may alter efficacy or safety.
  • Store at ambient temperature: keep below 25 °C in the original packaging, protected from moisture.

Avoid Interactions

Norethisterone can interact with other medicines, affecting its effectiveness or safety.

Major Interactions (Avoid)

  • Strong CYP3A4 inducers (e.g., rifampicin, carbamazepine, phenytoin): may markedly reduce plasma levels and contraceptive efficacy.
  • Anticoagulants (e.g., warfarin): progestogen may enhance anticoagulant effect, increasing bleeding risk.

Moderate Interactions (Monitor Closely)

  • CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): can increase norethisterone concentrations, raising side‑effect potential.
  • Certain antibiotics (e.g., macrolides) and antifungals: may modestly affect hormone levels.
  • Herbal supplements such as St John’s wort: may lower effectiveness of hormonal contraception.

Frequently Asked Questions

Norcolut, containing norethisterone, is indicated for hormonal contraception and for managing several menstrual disorders. It is used to treat heavy menstrual bleeding, irregular menstrual cycles, endometriosis‑related pain, and secondary amenorrhea, providing clinicians with a versatile progestogenic option for women of reproductive age.

Norethisterone is a synthetic progestogen that binds to progesterone receptors in the hypothalamus, pituitary gland and uterine tissue. This binding suppresses the mid‑cycle luteinising hormone surge, preventing ovulation, and induces secretory changes in the endometrium that reduce bleeding and stabilize the menstrual cycle.

The dose of Norcolut is individualized by the prescribing healthcare professional based on the specific indication, patient age, weight, medical history and any concomitant medications. Only a qualified prescriber should decide the appropriate regimen, and patients should follow the written prescription without alteration.

Norcolut is generally not recommended for use during pregnancy because it is intended to prevent conception. If pregnancy occurs, the medication should be discontinued and the clinician consulted. Limited data exist for breastfeeding; therefore, a healthcare provider should evaluate the risk‑benefit balance before use in nursing mothers.

To order Norcolut, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies and procurement teams across international markets. After submission, the sales team will verify trade or institutional credentials, then provide pricing, availability, shipping details and any necessary import documentation.

Norcolut delivers a progestogen‑only approach, whereas combined oral contraceptives contain both estrogen and progestogen. This can be advantageous for women who cannot tolerate estrogen, have estrogen‑sensitive conditions, or require a simpler regimen. However, progestogen‑only products may have a slightly higher failure rate if missed doses occur, so adherence is essential.

Norcolut tablets should be stored at ambient temperature, below 25 °C (77 °F). Keep the product in its original blister pack or container, protect it from moisture and direct sunlight, and keep it out of reach of children. Do not refrigerate or freeze the tablets.

Norcolut is taken orally, usually once daily at the same time each day, as directed by the prescribing clinician. The tablets are swallowed whole with water and can be taken with or without food. Patients should follow the exact schedule provided in their prescription to maintain efficacy.

The most serious risks include venous thromboembolism (deep‑vein thrombosis or pulmonary embolism), hepatic adenoma or other liver tumors, severe allergic reactions such as anaphylaxis, and worsening of depression or other psychiatric disorders. Patients should seek immediate medical attention if they experience symptoms such as unexplained leg swelling, severe abdominal pain, rash, or mood changes.

Norcolut should be avoided in women with a known hypersensitivity to norethisterone or any excipients, those with active or a history of thromboembolic disease, uncontrolled hypertension, severe liver disease, or known estrogen‑dependent tumors. It is also contraindicated during pregnancy and should be used with caution in patients with depression, migraine with aura, or smoking over 15 cigarettes per day.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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