Breast cancer

Indication for Tamoxifen

Population group: Suitable for both men and women, only adults (18 years old or older)

As an orally active anti-oestrogen in the treatment of breast cancer.

For this indication, competent medicine agencies globally authorize below treatments:

20-40 mg once a day

Route of admnistration


Defined daily dose

20 - 40 mg

Dosage regimen

From 20 To 40 mg once every day

Detailed description

The recommended daily dose of tamoxifen is normally 20 mg. No additional benefit, in terms of delayed recurrence or improved survival in patients, has been demonstrated with higher doses. Substantive evidence supporting the use of treatment with 30-40 mg per day is not available, although these doses have been used in some patients with advanced disease.

Active ingredient

Tamoxifen is a non-steroidal, triphenylethylene-based drug which displays a complex spectrum of oestrogen antagonist and oestrogen agonist-like pharmacological effects in different tissues.

Read more about Tamoxifen

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