Product image of Nolvadex (Tamoxifen Citrate) supplied by GNH India

Nolvadex

Active Ingredient:
Tamoxifen Citrate
Origin:
EU

Nolvadex (Tamoxifen Citrate)

Tamoxifen citrate, the active ingredient in Nolvadex, is a selective estrogen receptor modulator presented as a oral tablet for oral use. It treats estrogen receptor‑positive breast cancer, helps prevent disease in high‑risk women, and is used to manage gynecomastia.
GNH India supplies Nolvadex as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Astrazeneca D.O.O.

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Indications & Clinical Uses

Nolvadex (tamoxifen citrate) is employed in the management of estrogen‑driven conditions, primarily breast cancer and related disorders.

  • Estrogen receptor‑positive breast cancer (adjuvant): Reduces risk of recurrence after surgery or radiation.
  • Metastatic breast cancer: Delays disease progression and improves survival.
  • High‑risk women (chemoprevention): Lowers incidence of developing breast cancer.
  • Gynecomastia: Decreases breast tissue growth in males.

How It Works

  • Tamoxifen citrate acts as a competitive antagonist at estrogen receptors in breast tissue, blocking estrogen‑driven proliferation. In bone and uterine tissue it exhibits partial agonist activity, which contributes to its mixed hormonal effects. By preventing estrogen binding, the drug inhibits tumor growth and modulates hormonal pathways involved in breast cancer development.

Side Effects

Tamoxifen citrate may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects

  • Hot flashes: Sudden feeling of warmth, often with sweating.
  • Nausea: Mild to moderate stomach upset.
  • Fatigue: Generalized tiredness.
  • Vaginal discharge or dryness: Changes in vaginal secretions.

Serious or Rare Side Effects

  • Deep vein thrombosis or pulmonary embolism: Blood clots in veins or lungs.
  • Endometrial cancer: Abnormal growth of uterine lining.
  • Liver toxicity: Elevated liver enzymes or hepatitis.
  • Severe visual disturbances: Retinal changes affecting vision.

Precautions & Warnings

When prescribing Nolvadex, clinicians should consider several safety precautions to minimize risk.

  • Pregnancy: Contraindicated in pregnancy due to potential fetal harm; avoid use in pregnant women.
  • Thromboembolic risk: Assess history of clotting disorders before initiating therapy.
  • Liver function: Monitor hepatic enzymes regularly during treatment.
  • Ocular health: Perform baseline eye examination and monitor for visual changes.
  • Drug interactions: Review concomitant medications for CYP2D6 inhibitors or inducers.
  • Store at ambient temperature: Keep tablets below 25 °C in the original container, protected from moisture and light.

Avoid Interactions

Tamoxifen citrate can interact with other medicines, altering its effectiveness or safety profile.

Major Interactions (Avoid)

  • Strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine): Reduce conversion to active metabolites, decreasing efficacy.
  • Warfarin: May enhance anticoagulant effect, increasing bleeding risk.
  • Hormonal contraceptives: Potentially reduced contraceptive effectiveness.

Moderate Interactions (Monitor Closely)

  • SSRIs with moderate CYP2D6 inhibition (e.g., sertraline): May modestly affect tamoxifen metabolism.
  • Aromatase inhibitors: Combined use may increase hormonal side‑effects.
  • Antacids containing aluminum or magnesium: May affect absorption if taken simultaneously.

Frequently Asked Questions

Nolvadex (tamoxifen citrate) is prescribed for estrogen receptor‑positive breast cancer in both early‑stage (adjuvant) and metastatic settings, for chemoprevention in women at high risk of developing breast cancer, and for the treatment of male gynecomastia caused by hormonal imbalance.

Tamoxifen citrate binds competitively to estrogen receptors in breast tissue, blocking estrogen from stimulating tumor cell growth. It acts as a partial agonist in bone and uterine tissue, which contributes to its mixed hormonal profile while still inhibiting estrogen‑driven cancer proliferation.

The exact dose and schedule of Nolvadex are determined by the prescribing clinician based on the individual’s diagnosis, disease stage, and overall health. Patients should follow the prescriber’s instructions and not adjust the dose without medical guidance.

Nolvadex is classified as Pregnancy Category D, indicating evidence of fetal risk. It should not be used during pregnancy, and breastfeeding is generally discouraged because the drug can pass into breast milk and affect the infant.

To request Nolvadex, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and any necessary import documentation.

Nolvadex is a selective estrogen receptor modulator, whereas aromatase inhibitors reduce overall estrogen production. Tamoxifen is often preferred for pre‑menopausal patients and for long‑term chemoprevention, while aromatase inhibitors are commonly used in post‑menopausal women. Each class has distinct efficacy and side‑effect profiles.

Store Nolvadex tablets at ambient temperature, preferably below 25 °C. Keep them in the original blister pack or container, protected from moisture, heat, and direct sunlight to maintain potency throughout the shelf life.

Nolvadex is taken orally as a tablet, usually with or without food. The tablet should be swallowed whole with a glass of water and not crushed or chewed, unless otherwise directed by a healthcare professional.

The most serious risks include thromboembolic events such as deep‑vein thrombosis or pulmonary embolism, endometrial cancer, severe liver toxicity, and visual disturbances. Patients should promptly report symptoms like unexplained swelling, chest pain, abnormal uterine bleeding, jaundice, or changes in vision.

Nolvadex should be avoided in pregnant women, individuals with a known hypersensitivity to tamoxifen or any tablet excipients, patients with a history of thromboembolic disorders unless closely monitored, and those with severe liver impairment without appropriate medical supervision.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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