Answer
Hormone replacement therapy may oppose or reduce tamoxifen's effect and is not recommended for managing tamoxifen side effects without specialist review.
Sources for this answer
- Tamoxifen 20 mg Tabletsemc · SmPC Current selected SmPC · Version 7
- Tamoxifen Rosemont 10mg/5ml Oral Solutionemc · SmPC Current selected SmPC · Version 17