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What is Sargramostim and explain in detail?
Sargramostim (tradename Leukine) is a recombinant granulocyte macrophage colony-stimulating factor (GM-CSF) that functions as an immunostimulator.

Medical uses
Sargramostim is primarily used for myeloid reconstitution after autologous or allogeneic bone marrow transplantation. It is also used to treat neutropenia induced by chemotherapy during the treatment of acute myeloid leukemia.  It also used as a medical countermeasure for treating people who have been exposed to sufficient radiation to suppress bone marrow myelogenesis.It is administered via intravenous infusion.

Contraindications
Sargramostim should not be used in people with known hypersensitivity to GM-CSF, yeast-derived products or any component of the product and for concomitant use with chemotherapy and radiotherapy.There is a formulation with benzyl alcohol, which is toxic to babies; other formulations should be used.  Sargramostim has not been tested in pregnant women but appears to be toxic to fetuses. There is no data as to whether sargramostim is expressed in breast milk.

Adverse effects
Some people have experienced anaphylaxis when given the drug; and infusion reactions have occurred as well, including edema, capillary leak syndrome, a build up of fluid around the lungs and around the heart. Irregular heart rhythms have occurred, especially in people with a history of that problem