Pfizer Laboratories Div Pfizer IncUsage: Nivestym is a leukocyte growth factor indicated to reduce febrile neutropenia in nonmyeloid malignancy patients on myelosuppressive chemotherapy, shorten neutrophil recovery in AML, reduce neutropenia after bone marrow transplantation, mobilize progenitor cells for leukapheresis, and treat severe chronic neutropenia (congenital, cyclic, or idiopathic).