Nolvadex

Tamoxifen

Formulated to manage hormone-receptor-positive breast cancer and to support treatment outcomes through oestrogen receptor inhibition.

Active ingredient
Tamoxifen
Supply
Rx
Route
Oral use
Form
Tablet
Strengths
10 · 20mg

Nolvadex details

Therapeutic class
Selective oestrogen Receptor Modulator
Pharmacological class
SERM
Known off-label uses
infertility in women; gynaecomastia in men
Contraindications
pregnancy; history of thromboembolic disorders; hypersensitivity to tamoxifen
Minor side effects
hot flushes; nausea; fluid retention
Moderate side effects
vaginal bleeding; endometrial changes; vision disturbances
Dosage forms
Tablet
Administration route
Oral use
Supply category
Prescription only (specially controlled medicine)
Manufacturer
AstraZeneca
Onset Time
2–4 weeks
Duration
Daily
Drug interactions
warfarin; rifampicin; letrozole
Age restrictions
For adults; not intended for paediatric use.
Precautions and warnings

monitor for visual disturbances; report any abnormal vaginal bleeding; not recommended for use with blood-thinning medication

Serious side effects

thromboembolism, requires immediate medical attention; uterine cancer, requires immediate medical attention; stroke, requires immediate medical attention

Patient summary

formulated to manage hormone-receptor-positive breast cancer and to support treatment outcomes through oestrogen receptor inhibition.

Mechanism of action

Nolvadex functions by binding to the oestrogen receptors in breast tissue. This prevents oestrogen from attaching, which can slow or stop the growth of breast cancer cells that rely on this hormone to develop.

Storage instructions

Store at room temperature, keep in original packaging, away from moisture and direct light.

Pregnancy and breastfeeding

Pregnancy: Must not be used during pregnancy as it may cause fetal harm. Breastfeeding: Must not be used while breastfeeding as the drug is excreted into milk.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Nolvadex

Nolvadex is a therapy manufactured by AstraZeneca containing the active ingredient tamoxifen. Primary use is for the management of breast cancer and oestrogen receptor positive breast cancer. Nolvadex is supplied as a tablet in strengths of 10mg and 20mg, allowing for flexible dosing according to a patient’s specific health requirements.

Nolvadex availability in Asia

Nolvadex is registered across 14 markets in the region, including Taiwan, South Korea and Japan, with availability also in the UAE, Singapore and Hong Kong. While patients often use the original brand, generic tamoxifen, much of it produced in India, offers a more affordable alternative for expats and others living far from local medical centres. As these treatments address specific clinical conditions, they are best used under the care of a doctor.