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How Herceptin works
Cancer cells grow in an uncontrolled fashion. Herceptin works on the surface of the cancer cell by blocking the chemical signals that can stimulate this uncontrolled growth. Buy Herceptin powder 150 mg
Genes are like instruction manuals that tell each cell of your body how to grow, what kind of cell to become, and how to behave. Genes do this by ordering the cell to make special proteins that cause a certain activity — such as cell growth, rest, or repair.
Some cancer cells have abnormalities in genes that tell the cell how much and how fast to grow. Sometimes the cancer cells have too many copies of these genes with abnormalities. When there are too many copies of these genes, doctors refer to it as “overexpression.” With some forms of gene overexpression, cancer cells will make too many of the proteins that control cell growth and division, causing cancer to grow and spread.
Some breast cancer cells make too many copies of (overexpress) a particular gene known as HER2. The HER2 gene makes a protein known as a HER2 receptor. HER2 receptors are like ears, or antennae, on the surface of all cells. These HER2 receptors receive signals that stimulate the cell to grow and multiply. But breast cancer cells with too many HER2 receptors can pick up too many growth signals. This causes them to start growing and multiplying too much and too fast. Breast cancer cells that overexpress the HER2 gene are said to be HER2-positive.
Herceptin works by attaching itself to the HER2 receptors on the surface of breast cancer cells and blocking them from receiving growth signals. By blocking the signals, Herceptin can slow or stop the growth of breast cancer. Herceptin is an example of an immune targeted therapy. In addition to blocking HER2 receptors, Herceptin can also help fight breast cancer by alerting the immune system to destroy cancer cells onto which it is attached.
What to expect when taking Herceptin
Herceptin can only be given by intravenous (IV) infusion, which means it is delivered directly into your bloodstream through an IV or a port. The first dose of Herceptin takes about 90 minutes. After that, it only takes about 30 minutes to get other doses of Herceptin. Your Herceptin treatment schedule will depend on whether you are receiving it with other medicines. You can talk to your doctor about your treatment schedule options.
If you’ve been diagnosed with early-stage HER2-positive breast cancer, you’ll likely receive Herceptin together with a chemotherapy regimen. You will receive it for a specific amount of time.
If you’ve been diagnosed with metastatic HER2-positive breast cancer, you will keep being treated with Herceptin as long as you are getting benefits from the medicine and aren’t having troubling side effects.
It’s important to know that women who are pregnant or planning to get pregnant should not take Herceptin. Herceptin can harm the developing fetus. If there is any chance you can become pregnant, you must use effective birth control while you’re taking Herceptin and for at least 7 months after your last dose. Visit Treatment for Breast Cancer During Pregnancy for more information. Buy Herceptin powder 150 mg
Also, women who are breastfeeding or plan to breastfeed shouldn’t take Herceptin. Together, you and your doctor will decide if you should take Herceptin or breastfeed.