MedicalTerminology DB
Medications & Pharmacology

4-hydroxytamoxifen

Meaning of 4-hydroxytamoxifen: A form of the drug tamoxifen that is made by the body after taking tamoxifen.

Definition of 4-hydroxytamoxifen

A form of the drug tamoxifen that is made by the body after taking tamoxifen. It can also be made in the laboratory, and may help decrease breast density. A topical form of 4-hydroxytamoxifen is being studied in breast cancer screening.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.