Tamoxifen is often the go-to hormonal therapy for premenopausal women with hormone receptor (HR)-positive breast cancer. It works by blocking estrogen from attaching to breast cancer cells, which stops estrogen from fueling tumor growth.
The long-term outlook with tamoxifen is encouraging. It can reduce the risk of breast Show Full Answer
Tamoxifen is often the go-to hormonal therapy for premenopausal women with hormone receptor (HR)-positive breast cancer. It works by blocking estrogen from attaching to breast cancer cells, which stops estrogen from fueling tumor growth.
The long-term outlook with tamoxifen is encouraging. It can reduce the risk of breast cancer recurrence by up to 50 percent. It's typically taken for 5 to 10 years after surgery. In terms of safety, tamoxifen is generally well-tolerated, though side effects can be challenging for some. Common ones include:
- Hot flashes and night sweats
- Vaginal dryness or discharge
- Irregular periods
- Mood swings
- Fatigue
- Weight gain
- Headaches or nausea
Most side effects are manageable, and stopping treatment early is not recommended. Research shows that premenopausal women who stopped hormonal therapy early had nearly double the recurrence risk compared to those who completed their full course. If side effects feel overwhelming, there are strategies that may help, such as:
- Talk therapy or breathing exercises
- Acupuncture or yoga
- Dose adjustments (research suggests a lower 5mg dose may be just as effective with fewer side effects)
Always talk with your care team before making any changes to your treatment plan. They can help find the right balance between managing side effects and keeping your recurrence risk low.
May 28
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