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 an oral tablet for oral use. It is used to treat estrogen receptor‑positive breast cancer and to reduce the risk of recurrence in high‑risk patients.
GNH India supplies Nolvadex as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Astrazeneca Gmbh

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Indications & Clinical Uses

Nolvadex acts on estrogen‑dependent breast cancer pathways and is indicated for several clinical situations.

  • Estrogen receptor‑positive breast cancer (adjuvant): Reduces risk of disease recurrence after surgery.
  • Metastatic breast cancer: Improves progression‑free survival in advanced disease.
  • Prevention of breast cancer recurrence: Decreases likelihood of new tumor development following primary treatment.
  • High‑risk women for breast cancer: Lowers incidence of first‑time breast cancer in women with elevated risk.

How It Works

  • Tamoxifen citrate binds competitively to estrogen receptors in breast tissue, acting as an antagonist that blocks estrogen‑driven cell proliferation, while exhibiting partial agonist activity in bone and uterine tissue, thereby modulating estrogen‑dependent signaling pathways.

Side Effects

Common Side Effects

  • Hot flashes: Transient feeling of warmth and sweating.
  • Nausea: Mild to moderate stomach upset.
  • Menstrual irregularities: Changes in cycle length or flow.
  • Fatigue: Generalized tiredness.
  • Vaginal discharge: Increased lubrication or spotting.
  • Mood swings: Fluctuations in emotional state.

Serious or Rare Side Effects

  • Thromboembolic events: Deep vein thrombosis or pulmonary embolism.
  • Endometrial cancer: Unusual uterine bleeding or pain.
  • Liver toxicity: Jaundice or elevated liver enzymes.
  • Severe allergic reaction: Rash, swelling, or difficulty breathing.
  • Visual disturbances: Blurred vision or retinal changes.
  • Pulmonary embolism: Sudden shortness of breath or chest pain.

Precautions & Warnings

Before initiating Nolvadex, consider the following precautions.

  • Pregnancy: Contraindicated (Category D) due to potential fetal harm.
  • Thromboembolic risk: Monitor for signs of deep vein thrombosis or pulmonary embolism.
  • Liver function: Assess hepatic enzymes prior to therapy and periodically thereafter.
  • Vision changes: Promptly report any ocular symptoms such as blurred vision.
  • Drug interactions: Review concomitant medications for CYP2D6 inhibitors and anticoagulants.
  • Store at ambient temperature: Keep below 25 °C in the original container, protect from moisture.

Avoid Interactions

Nolvadex may interact with several drug classes; monitoring is essential.

Major Interactions (Avoid)

  • Strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine): May increase tamoxifen plasma levels.
  • Warfarin: Potential enhancement of anticoagulant effect, increasing bleeding risk.
  • Aromatase inhibitors: May counteract estrogen‑modulating actions.

Moderate Interactions (Monitor Closely)

  • SSRIs: May reduce effectiveness of hot‑flash management.
  • Antacids: May affect oral absorption if taken simultaneously.

Frequently Asked Questions

Nolvadex (tamoxifen citrate) is prescribed for estrogen receptor‑positive breast cancer, both as adjuvant therapy after surgery and for metastatic disease. It is also used to lower the risk of breast cancer recurrence and to prevent first‑time breast cancer in women identified as high‑risk.

Tamoxifen citrate binds to estrogen receptors in breast tissue, acting as an antagonist that blocks estrogen‑driven cell growth. In other tissues, such as bone, it can act as a partial agonist, providing a balanced hormonal effect while inhibiting tumor proliferation.

The specific dose of Nolvadex is determined by the prescribing clinician based on the individual’s condition, treatment stage, and overall health. Typical regimens are individualized, and patients should follow the dosage instructions provided by their healthcare professional.

Nolvadex is classified as Pregnancy Category D, indicating evidence of fetal risk, and it is contraindicated during pregnancy. It is also not recommended for breastfeeding mothers because it can pass into breast milk and affect the infant.

To order 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.

The primary alternative to Nolvadex is the class of aromatase inhibitors, which lower estrogen production rather than block its receptor. While aromatase inhibitors are often used after menopause, Nolvadex can be effective in pre‑menopausal patients and offers a different side‑effect profile, such as fewer bone‑density concerns but a higher risk of thromboembolic events.

Nolvadex tablets should be stored at ambient temperature, preferably below 25 °C, in the original packaging to protect them from moisture and light. Keep the product out of reach of children and do not use if the packaging is damaged.

Nolvadex is taken orally as a tablet, with or without food, according to the prescribing physician’s instructions. Swallow the tablet whole with a glass of water and do not crush or chew it unless directed otherwise.

Serious risks include deep vein thrombosis or pulmonary embolism, endometrial cancer, severe liver injury, and allergic reactions such as rash or swelling. Patients should promptly report unexplained leg pain, shortness of breath, abnormal uterine bleeding, jaundice, or any signs of an allergic response.

Nolvadex should not be used by pregnant women, individuals with known hypersensitivity to tamoxifen or its excipients, patients with a history of thromboembolic disorders, or those with active liver disease without close monitoring. Clinicians must evaluate each patient’s medical history before initiating therapy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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