Tamoxifen is a selective estrogen receptor modulator (SERM) primarily used to treat and prevent breast cancer, particularly in estrogen receptor-positive cases. It works by blocking estrogen receptors, inhibiting cancer cell growth.

Tamoxifen Citrate FAQ


What is Tamoxifen used for?

Primarily treats and prevents hormone receptor-positive breast cancer by blocking estrogen receptors.

How does Tamoxifen work?

Acts as a SERM, inhibiting estrogen's effects on breast cancer cells, slowing tumor growth.

Is Tamoxifen a chemotherapy drug?

No, it's an endocrine (hormone) therapy, not traditional chemotherapy.

What are common side effects of Tamoxifen?

Includes hot flashes, vaginal discharge, and increased risk of blood clots.

Can Tamoxifen cause weight gain?

Some patients may experience weight changes, though not universally reported.

How long is Tamoxifen typically taken?

Usually 5-10 years, depending on cancer stage and patient risk factors.

Does Tamoxifen affect fertility?

May impact ovarian function; fertility preservation options should be discussed.

Is Tamoxifen used for male breast cancer?

Yes, it's an option for hormone receptor-positive male breast cancer cases.

Can Tamoxifen prevent breast cancer recurrence?

Yes, reduces recurrence risk in pre- and postmenopausal women with ER+ tumors.

What monitoring is required during Tamoxifen treatment?

Regular check-ups, mammograms, and gynecological exams are recommended.

How is Tamoxifen administered?

Orally, typically once or twice daily, with or without food.

Are there alternatives to Tamoxifen?

Aromatase inhibitors (e.g., Anastrozole) may be used, especially in postmenopausal women.

Does Tamoxifen interact with other medications?

May interact with certain drugs; disclose all medications to your oncologist.

Can Tamoxifen be taken during pregnancy?

Not recommended due to potential fetal risks; contraception is advised.

What happens if Tamoxifen is stopped abruptly?

Treatment cessation should be medically guided to avoid disease progression.

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