Herceptin Side Effects
What should I watch for?
Visit your doctor for checks on your progress. Report any side effects. Continue your course of treatment even though you feel ill unless your doctor tells you to stop.
Call your doctor or health care professional for advice if you get a fever, chills or sore throat, or other symptoms of a cold or flu. Do not treat yourself. Try to avoid being around people who are sick.
You may experience fever, chills and shaking during your first infusion. These effects are usually mild and can be treated with other medicines. Report any side effects during the infusion to your health care professional. Fever and chills usually do not happen with later infusions.
Do not become pregnant while taking this medicine or for 7 months after stopping it. Women should inform their doctor if they wish to become pregnant or think they might be pregnant. Women of child-bearing potential will need to have a negative pregnancy test before starting this medicine. There is a potential for serious side effects to an unborn child. Talk to your health care professional or pharmacist for more information. Do not breast-feed an infant while taking this medicine or for 7 months after stopping it.
Women must use effective birth control with this medicine.
Common and Rare Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor or nurse immediately if any of the following side effects occur:
fever or chills
nausea or vomiting
stuffy or runny nose
unusual tiredness or weakness
difficult or labored breathing
ear congestion or pain
fast or irregular heartbeat
general feeling of discomfort or illness
hoarseness or other voice changes
loss of appetite
pain or tenderness around the eyes and cheekbones
swelling of the feet or lower legs
tightness in the chest
trouble with sleeping
Blue lips and fingernails
faintness or lightheadedness when suddenly getting up from a lying or sitting position
large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, feet, or sex organs
painful or difficult urination, accompanied by fever or chills
redness of the skin
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Numbness or tingling of the hands or feet
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.