Let's take a minute to talk about your medication. 

This is Perjeta. It helps treat cancer cells that have too much of a protein called 'HER-2'. Perjeta targets and blocks HER-2, which may stop cancer cells from growing. 

You will receive this medicine as an infusion into a vein. Sometimes, an infusion reaction can happen during the dose or shortly after. Your nurse will watch you closely during each dose. He or she will tell you which symptoms to report, like a fever, chills or a headache. Your nurse will be prepared to treat any concerns.

As with any medicine, side effects can occur. You should wait until you know how this medicine affects you before you do activities that require you to be alert, like driving. Common side effects include nausea, diarrhea and feeling tired. These are normal if they are mild and should go away. You should be aware that hair loss could occur. You should tell your doctor about side effects. He or she will help manage them. 

Perjeta can lower your ability to fight infections. Your doctor will order blood tests to watch for this. To help keep this medicine safe for you, your doctor will follow your condition closely.

It is important to know that Perjeta could cause heart problems. You should call your doctor right away if you have dizziness, a cough, shortness of breath or if your heart beats fast or flutters. Also, call if you have swelling in your ankles or legs, or if you gain 5 pounds or more in 24 hours. 

Perjeta can harm unborn babies. Women must talk to their doctors about which birth control to use, and for how long. 

For best results with Perjeta, work closely with your doctor to manage side effects.