Tamoxifen 10 mg: what to know

The 10 mg label describes the amount of tamoxifen in one tablet or prescribed dose. The right schedule depends on why it has been prescribed, your previous treatment, other medicines and your health. Do not compare your dose with another person's or change it because symptoms improve.

Tamoxifen blocks oestrogen signals in breast tissue. It may be used for hormone-sensitive breast cancer or risk reduction in selected people. Hot flushes, sweating, nausea, tiredness, vaginal symptoms, period changes and mood changes are possible. Unusual bleeding and clot symptoms need prompt attention.

Take the 10 mg dose at the time and frequency written on your prescription. If you miss it, use the instructions from your pharmacist or oncology team; never take extra tablets to make up for it unless specifically told to do so. Tell healthcare professionals about tamoxifen before adding medicines, supplements or herbal products.

If pregnancy is possible, discuss contraception and pregnancy plans before treatment or any change. Keep follow-up appointments and write down symptoms, their timing and anything that makes them better or worse. This helps your team decide whether support or a medication review is needed.

Get urgent help for sudden breathlessness, chest pain, coughing blood, or a painful swollen leg. Contact your clinician promptly about unexpected vaginal bleeding, new pelvic pain, sudden vision change, severe headache, or side effects that are getting worse.

Ask why 10 mg is the dose chosen for you, how often it should be taken, and how long treatment is planned. Ask which medicines can interact, what to do after a missed dose, and which bleeding or clot symptoms need same-day assessment.