Understanding Herceptin: How it Works, Benefits, and Side Effects

Herceptin (trastuzumab) is a monoclonal antibody that targets the human epidermal growth factor receptor 2 (HER2). It is used to treat certain types of breast cancer and gastric cancer.

How does Herceptin work?
Herceptin works by binding to the HER2 protein on the surface of cancer cells, which helps to slow down the growth of the cancer cells and eventually kill them.

What are the benefits of Herceptin?
The benefits of Herceptin include:

* Improved survival rates for patients with HER2-positive breast cancer
* Reduced risk of recurrence of breast cancer
* Improved response to chemotherapy
* Reduced risk of developing brain metastases

What are the potential side effects of Herceptin?
The potential side effects of Herceptin include:

* Infusion reactions (such as fever, chills, or flushing)
* Allergic reactions (such as hives or difficulty breathing)
* Nausea and vomiting
* Fatigue
* Headache
* Muscle or joint pain
* Diarrhea
* Constipation
* Hair loss

How is Herceptin administered?
Herceptin is given by intravenous infusion, usually once every three weeks. The dosage and duration of treatment depend on the type of cancer being treated and the patient's overall health.

Is Herceptin a targeted therapy?
Yes, Herceptin is a targeted therapy because it specifically targets the HER2 protein on cancer cells. It is not a traditional chemotherapy drug that kills all rapidly dividing cells, but rather a targeted therapy that selectively targets cancer cells with the HER2 protein.