Grastin Injection 300mcg

About Grastin Injection 300mcg

Grastin Injection 300mcg Uses

• Low white blood cell count caused by chemotherapy
• Prevention of infection during cancer treatment cycles
• Recovery support after bone marrow transplant
• Severe chronic neutropenia in selected patients

Grastin Injection 300mcg Benefits

• Speeds recovery of neutrophil counts after chemotherapy
• Reduces the risk of serious infection during cancer treatment
• Helps patients stay on schedule with planned chemotherapy cycles
• Supports stem cell mobilization before transplant procedures

What Experts Say

Filgrastim is a manufactured version of granulocyte colony stimulating factor, a protein the body naturally produces to signal bone marrow to make more neutrophils. Neutrophils are the white blood cells that fight off bacterial and fungal infections.

Chemotherapy often damages the bone marrow along with cancer cells, leaving patients with dangerously low neutrophil counts and a high risk of infection. Filgrastim injections stimulate the bone marrow to produce and release neutrophils faster, shortening the period a patient spends at highest infection risk.

Because filgrastim works directly on bone marrow, it needs careful medical supervision with regular blood count monitoring. Bone pain is a well recognized side effect as the marrow becomes more active, and injections are typically timed to specific days within a chemotherapy cycle rather than given continuously through the entire treatment period.

Drug Class

• Granulocyte colony stimulating factor
• Hematopoietic growth factor
• Recombinant biologic injection

Grastin Injection 300mcg formula

• Filgrastim

Available forms

• Injection

How to use Grastin Injection 300mcg?

• Administer only under the supervision of a doctor or trained nurse
• Give as a subcutaneous injection into the abdomen, thigh or upper arm
• Follow the exact timing prescribed within each chemotherapy cycle
• Bring the vial to room temperature before injecting
• Attend all scheduled blood count monitoring appointments

Drug Interactions

• Chemotherapy Drugs: Filgrastim is usually given at least twenty four hours before or after chemotherapy doses to avoid reduced effectiveness.
• Lithium: Lithium can increase the neutrophil raising effect of filgrastim, requiring closer monitoring.
• Other Biologic Agents: Combining with other growth factors is generally avoided unless specifically directed by an oncologist.

Risks and warnings

• Bone Pain: Aching in the back, hips or long bones is common as the marrow becomes more active.
• Spleen Risk: Rarely, filgrastim can enlarge or rupture the spleen, so sudden left sided abdominal pain needs urgent review.
• Allergic Reactions: Some patients develop rash, swelling or breathing difficulty after injection.
• Sickle Cell Disease: This injection needs extra caution in patients with sickle cell disorders due to crisis risk.
• Specialist Use Only: This is a hospital grade biologic injection that must be prescribed and monitored by a specialist.

Grastin Injection 300mcg Side Effects

• Bone and joint pain
• Injection site redness or swelling
• Headache
• Fatigue
• Nausea
• Fever
• Spleen enlargement in rare cases
• Allergic reaction in rare cases

Storage Conditions

• Store in a refrigerator between 2 and 8 degrees Celsius
• Protect the vial from light and avoid freezing
• Keep out of reach of children
• Bring to room temperature briefly before injecting, then use promptly