This medicine may interact with the following medications:

-certain types of chemotherapy, such as daunorubicin, doxorubicin, epirubicin, and idarubicin

They need to know if you have any of these conditions:

-heart disease
-heart failure
-lung or breathing disease, like asthma
-an unusual or allergic reaction to trastuzumab, or other medications, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

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.

This drug is given in a hospital or clinic and will not be stored at home.