MyBCTeam

How exciting (and nerve-wracking!) that your first Herceptin treatment is coming up soon. It's completely natural to want to know what to expect. Here's a summary of side effects that have been reported:

During or shortly after infusion
- Allergic or infusion reactions
- Nausea and vomiting
- Headache
- Taste and smell Show Full Answer

How exciting (and nerve-wracking!) that your first Herceptin treatment is coming up soon. It's completely natural to want to know what to expect. Here's a summary of side effects that have been reported:

During or shortly after infusion:
- Allergic or infusion reactions
- Nausea and vomiting
- Headache
- Taste and smell changes

Early side effects (days to weeks after):
- Fatigue
- Infections
- Easy bruising or bleeding
- Mouth sores
- Rash
- Tingling or changes in feeling in hands or feet

Later side effects (weeks, months, or even years after):
- Hair loss
- Nail changes
- Menopause-like symptoms such as hot flashes and vaginal dryness
- Heart-related changes One important thing to be aware of is that Herceptin can affect heart function in some people. Regular heart monitoring during treatment is strongly recommended, so make sure your care team has that scheduled.

Some MyBCTeam members have described sensations like whole-body aching, numbness, and weakness. Everyone's experience is different, so not all of these may apply to you.

Don't hesitate to track any symptoms you notice and share them with your oncologist — it really helps them tailor your care. Wishing you all the best going into your first treatment! 💙

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

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