Let's take a minute to talk about your medication. This is Neulasta. It keeps healthy levels of white blood cells in your body. White blood cells protect you from infections. After chemotherapy, your nurse will place the Onpro device on your arm or stomach. About 27 hours later, it will inject a dose of Neulasta. While you wear Neulasta Onpro, take care to not sleep on it, and do not apply lotions near it. Keep it at least four inches away from cell phones and electronics. Also, you should AVOID these 6 things: - Very cold weather - Direct sunlight - Hot tubs, saunas and whirlpools - Hyperbaric chambers - Radiology tests - And, airport scanners You should plan to be in a comfortable location before and during the dose, and do not drive. After the dose, you will peel the device off, and throw it away in a sharps container. Neulasta can cause side effects. The most common one is pain in the arms, legs or bones. You should talk to your doctor about how to prevent this pain, and how to treat it if it happens. If these or other side effects become reasons you want to stop taking Neulasta, please talk to your doctor or pharmacist. As with any medicine, rare but more serious side effects can occur. You should read the Patient Information sheet to know what to watch for, and when to report symptoms. For example, tell your doctor right away if you have trouble breathing, pain in the upper stomach or shoulder, sickle cell pain, or swelling in your stomach, face or ankles. Also, call right away if you feel dizzy or flushed, or if you have a fever or notice changes in your urine. For best results with Neulasta Onpro, ask about helpful support services that are available.