Sargramostim Injection

Category: Hematopoietic growth factor / Colony-stimulating factor (GM-CSF)
Form: Injectable solution for subcutaneous (SC) or intravenous (IV) use

Uses:

• Stimulates bone marrow to produce white blood cells, especially granulocytes and macrophages.

• Used in patients with neutropenia after chemotherapy or bone marrow transplantation.

• Can accelerate recovery of bone marrow function in certain cases of bone marrow failure or after autologous stem cell transplantation.

• Sometimes used to mobilize peripheral blood progenitor cells for collection and transplantation.

Mechanism of Action:

• Sargramostim is a recombinant human granulocyte-macrophage colony-stimulating factor (GM-CSF).

• Binds to GM-CSF receptors on hematopoietic progenitor cells in the bone marrow.

• Stimulates proliferation, differentiation, and activation of granulocytes, monocytes, and macrophages.

• Enhances immune function and infection defense in immunocompromised patients.

Administration:

• Administered subcutaneously or intravenously, depending on clinical protocol.

• Dosage is based on body weight, clinical condition, and desired white blood cell response.

• Frequency varies from daily to several times a week until hematologic recovery.

Side Effects:

• Bone and muscle pain, due to increased marrow activity.

• Fever, chills, fatigue, and headache.

• Gastrointestinal: nausea, vomiting, diarrhea.

• Cardiovascular: hypotension, edema (rare).

• Hematologic: leukocytosis if overdosed.

Precautions:

• Monitor complete blood counts during therapy to avoid excessive leukocytosis.

• Use cautiously in patients with heart failure, pulmonary disease, or fluid overload.

• Monitor for allergic reactions during injection.

• Adjust dose in patients with renal or hepatic impairment if necessary.

Summary:
Sargramostim Injection is a recombinant GM-CSF that stimulates bone marrow to produce granulocytes and macrophages, improving immune defense in patients with neutropenia or bone marrow suppression. Administered subcutaneously or intravenously, it is commonly used after chemotherapy, bone marrow transplantation, or to mobilize progenitor cells. Side effects include bone pain, fever, fatigue, and rare cardiovascular or allergic reactions.