The PFS 300mcg Filgrastim Injection IP is used to promote white blood cells in the body. Lower white blood cells weaken the immune system of the body; the health condition is called neutropenia. The injection is a synthetic substance, but is naturally produced in the body, and thus known as colony stimulating factor. Right dosage of PFS 300mcg Filgrastim Injection IP helps bone marrow to improve the growth of new blood cells. We have procured this injection from reputed manufacturers, who are known for offering precisely formulated product in the market.