NIVESTYM is a man-made form of granulocyte colony-stimulating factor (G-CSF). G-CSF is a substance produced by the body. It stimulates the growth of neutrophils, a type of white blood cell important in the body's fight against infection.
Do not take NIVESTYM if you have had a serious allergic reaction to human G-CSFs such as filgrastim products or pegfilgrastim products.
Before you take NIVESTYM, tell your healthcare provider about all of your medical conditions, including if you:
- have a sickle cell disorder.
- have kidney problems.
- are receiving radiation therapy.
- are pregnant or plan to become pregnant. It is not known if NIVESTYM will harm your unborn baby.
- are breastfeeding or plan to breastfeed. It is not known if NIVESTYM passes into your breast milk.
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.