Pegfilgrastim is used to prevent infections following chemotherapy.
How Pegfilgrastim works Pegfilgrastim is a growth factor that stimulates the bone marrow to produce white blood cells. These cells protect the body against infections.
Common side effects of Pegfilgrastim include joint pain, headache, muscle pain, back pain, injection site pain, hair loss, fever, diarrhea, skeletal pain, limb pain, musculoskeletal (bone, muscle, or joint) pain, and neck pain.