Description and Brand Names

Drug information provided by: Micromedex

US Brand Name

  1. Neupogen

Descriptions


Filgrastim injection is used to treat neutropenia (low white blood cells) that is caused by cancer medicines. It is a synthetic (man-made) form of a substance that is naturally produced in your body called a colony stimulating factor. Filgrastim helps the bone marrow to make new white blood cells.

When certain cancer medicines are used to fight cancer cells, they also affect the white blood cells that fight infections. Filgrastim is used to prevent or reduce the risk of infection while you are being treated with cancer medicines. This medicine is also used to help the bone marrow recover after a bone marrow transplantation, and for a process called peripheral blood progenitor cell collection in cancer patients.

This medicine is available only with your doctor's prescription.

This product is available in the following dosage forms:

  • Solution
  • Injectable

Before Using

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of filgrastim injection in children. However, safety and efficacy have not been established in infants younger than 1 month of age.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of filgrastim injection in the elderly. .

Pregnancy

Information about this filgrastim-injection-route
Pregnancy Category Explanation
All Trimesters C Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breastfeeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Topotecan
  • Vincristine
  • Vincristine Sulfate Liposome

Other Interactions

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Bleeding problems or
  • Cutaneous vasculitis (skin disorder) or
  • Lung disease or breathing problems or
  • Sickle cell disease (red blood cell disease) or
  • Thrombocytopenia (low platelets in the blood)—Use with caution. May make these conditions worse.

Proper Use

A nurse or other trained health professional may give you this medicine. This medicine is given as a shot under your skin or into a vein.

You may be taught how to give this medicine at home. Make sure you understand all of the instructions before giving yourself an injection. Use this medicine only as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered.

This medicine comes with patient instructions. Read and follow these instructions carefully. Ask your doctor if you have any questions about:

  • How to prepare the injection.
  • The proper use of disposable syringes.
  • How to give the injection.
  • How long the injection can be stored at home.

If you use the prefilled syringe, make sure you know how to use the needle guard. After giving an injection, slide the needle guard forward over the needle until you hear a "click." The needle guard will safely cover the used needle.

Each syringe or vial of medicine is good for only one dose. Throw the syringe or vial away after your dose. Do not save unused medicine from an opened vial or syringe.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For injectable dosage form:
    • For neutropenia:
      • Adults and children—Dose is based on body weight and must be determined by your doctor.
      • Infants younger than 1 month of age—Use and dose must be determined by your doctor.

Missed Dose

This medicine needs to be given on a fixed schedule. If you miss a dose or forget to use your medicine, call your doctor or pharmacist for instructions.

Storage

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Store in the refrigerator. Do not freeze.

Leave the medicine in the carton until you are ready to use it. If you accidentally freeze the medicine, let it thaw out in the refrigerator before you use it. If you accidentally freeze the medicine a second time, do not use it.

You may let the medicine warm up to room temperature before you use it. The medicine can stay out of the refrigerator for up to 24 hours. Discard any medicine that has been out of the refrigerator for more than 24 hours.

Throw away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets.

Precautions

It is very important that your doctor check the progress of you or your child at regular visits to make sure this medicine is working properly. Blood tests may be needed to check for unwanted effects.

Check with your doctor right away at the first sign of an infection, such as fever, chills, cough, sore throat, or unusual tiredness or weakness.

This medicine may cause serious allergic reactions that require immediate medical attention. Tell your doctor right away if you or your child have a rash, itching skin, dizziness, lightheadedness, or fainting, swelling of the face, tongue, or throat, trouble breathing, or chest pain after you receive the medicine.

Check with your doctor right away if you or your child are having pain in the upper left part of your stomach or at the tip of the left shoulder. This could be a symptom of a serious side effect with the spleen.

Check with your doctor right away if you or your child develop fever, shortness of breath, chest pain or tightness, or trouble breathing. These could be symptoms of a serious lung condition called acute respiratory distress syndrome (ARDS).

This medicine may cause bleeding in the lungs. Check with your doctor right away if you or your child cough up blood or have blood in your sputum (spit).

Check with your doctor right away if you have black or tarry stools, bleeding gums, blood in the urine or stools, pinpoint red spots on the skin, or unusual bleeding or bruising after receiving this medicine.

The needle cover of the prefilled syringe contains dry natural rubber (a derivative of latex). This may cause an allergic reaction in people who are sensitive to latex. Tell your doctor if you or your child have a latex allergy before you start using this medicine.

Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

  1. Abdominal or stomach pain
  2. bleeding gums
  3. bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
  4. blood in the urine or stools
  5. bloody nose
  6. cough
  7. coughing up blood
  8. diarrhea
  9. difficult or labored breathing
  10. difficulty with swallowing
  11. dizziness
  12. facial swelling
  13. feeling of fullness
  14. fever or chills
  15. headache
  16. increased menstrual flow or vaginal bleeding
  17. lower back or side pain
  18. nausea or vomiting
  19. nosebleeds
  20. pain in the back, ribs, arms, or legs
  21. pain spreading to the left shoulder
  22. painful or difficult urination
  23. pale skin
  24. paralysis
  25. pinpoint red or purple spots on the skin
  26. prolonged bleeding from cuts
  27. red or black, tarry stools
  28. red or dark brown urine
  29. skin rash
  30. sore throat
  31. sores, ulcers, or white spots on the lips, tongue, or inside the mouth
  32. tightness in the chest
  33. troubled breathing with exertion
  34. unusual bleeding or bruising
  35. unusual tiredness or weakness

Less common

  1. Blurred vision
  2. chest pain
  3. nervousness
  4. pounding in the ears
  5. slow or fast heartbeats

Incidence not known

  1. Blisters on the skin
  2. blue lips, fingernails, or skin
  3. difficult or fast breathing
  4. sores on the skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  1. Bone, joint, or muscle pain
  2. hair loss or thinning of the hair
  3. loss of appetite
  4. weight loss

Less common

  1. Cracked lips
  2. difficulty having a bowel movement (stool)
  3. swelling or inflammation of the mouth

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.