Not all people have serious side effects, but side effects with VivitraTM (Trastuzumab) therapy are common. Your doctor will stop treatment if any serious side effects occur.
These include heart problems—such as congestive heart failure or reduced heart function—with or without symptoms. The risk for and seriousness of these heart problems may high in people who received both VivitraTM (Trastuzumab) and a certain type of chemotherapy (anthracycline). Your doctor will check for signs of heart problems before, during, and after treatment with VivitraTM (Trastuzumab).
These signs usually happen within 24 hours after receiving VivitraTM (Trastuzumab).
Your doctor may check for signs of severe lung problems when he or she examines you.
Low white blood cell counts can be life threatening. Low white blood cell counts may occur often in patients receiving VivitraTM (Trastuzumab) plus chemotherapy than in patients receiving chemotherapy alone.
Your doctor may check for signs of low white blood cell counts when he or she examines you.
Be sure to contact your doctor if,
If you stop treatment with VivitraTM (Trastuzumab), you should keep using birth control for at least 7 months before trying to become pregnant.
Before taking VivitraTM (Trastuzumab), you must have a HER2 test to determine if your cancer is HER2-positive. This is because the benefit of treatment with VivitraTM (Trastuzumab) has been shown only in patients whose tumors are HER2-postive.
You should contact your doctor immediately if you have any of the side effects listed above.