Librium is the trade name, generic name recombinant human granulocyte stimulating factor injection, recombinant human granulocyte stimulating factor injection’s role and efficacy is to promote leukocyte proliferation, and can increase the function of granulocyte lineage terminally differentiated cells. The main ingredient of Recombinant Human Granulocyte Stimulating Factor Injection is Recombinant Human Granulocyte Stimulating Factor, which belongs to the immuno-stimulating drugs. Its mechanism of action is to use gene recombination technology to produce human granulocyte colony-stimulating factor, can selectively act on granulocyte hematopoietic progenitor cells, prompting their value-added and differentiation, and can play a role in increasing the function of granulocyte terminally differentiated cells. Clinically, it can be used in the treatment of neutropenia, as well as to promote the elevation of neutrophil counts after bone marrow transplantation. Some patients may experience muscle aches, bone pain, chest pain, fever, and loss of appetite during the use of the drug. Severe hepatic and renal dysfunction and allergy need to be contraindicated. Before using Recombinant Human Granulocyte Stimulating Factor Injection, patients need to take into account their own situation and ask their doctor for guidance.