SIDE EFFECTS: Aching in the bones and muscles, chills, or headache may occur. Taking a non-aspirin pain reliever such as acetaminophen may help. Ask your doctor or pharmacist for more details. Nausea, vomiting, or injection-site reactions such as redness, swelling, itching, lumps, or bruising may also occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if you have any serious side effects, including: chest pain, sudden weight gain, swelling of the hands/feet, shortness of breath, black stools, persistent stomach/abdominal pain, vomit that looks like coffee grounds, fast/irregular heartbeat, vision problems, a sudden reddening of the face/neck/chest, severe dizziness, fainting.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

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

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Read the Leukine (sargramostim) Side Effects Center for a complete guide to possible side effects »

PRECAUTIONS: Before using sargramostim, tell your doctor or pharmacist if you are allergic to it; or to other medications made in a similar manner (man-made proteins using Saccharomyces cerevisiae); or if you have any other allergies. This product may contain inactive ingredients (such as benzyl alcohol), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: fluid retention, lung problems, heart problems (e.g., congestive heart failure-CHF, rhythm problems), liver disease, kidney disease, other blood disorders (e.g., myeloid cancers), current chemotherapy.

If you are scheduled to have radiation therapy, tell your doctor you are taking sargramostim. This medication should not be given during the time you are receiving radiation therapy.

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.