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Specialty Drug
Neumega is part of the Megakaryocyte Growth Factors class and treats Chronic ITP. Megakaryocyte growth factors are used to treat chronic ITP. They work by increasing the number of blood platelets to promote normal clotting. Neumega is only available as a brand name drug. Compare megakaryocyte growth factors.
Prescription Settings
1 vial of 5mg
1 kit
1 vial of 5mg
1 kit

Neumega Side Effects

Common and Rare 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.

The side effects listed below include only those that might be caused by oprelvekin. To find out about other side effects that may be caused by the cancer medicines you are also receiving, see the information about those medicines.

Check with your doctor as soon as possible if any of the following side effects occur:

More common

Fast heartbeat

fluid retention

irregular heartbeat

shortness of breath

sore mouth or tongue

swelling of feet or lower legs

white patches in mouth and/or on tongue

Less common

Bloody eye

blurred vision

severe redness and peeling of skin

Incidence not determined

—Observed during clinical practice with levofloxacin; estimates of frequency cannot be determined



bloody urine

blurred vision


change in ability to see colors, especially blue or yellow

cloudy urine



decrease or increase in amount of urine

difficulty swallowing

discoloration of skin


fainting or lightheadedness

fast heartbeat

feeling of pressure


increased blood pressure

increased thirst




loss of appetite

lower back/side pain





puffiness or swelling of the eyelids or around the eyes face, lips or tongue




shortness of breath

skin rash



stomach pain;



tightness in chest


troubled breathing


unusual tiredness or weakness


warmth at site

weight gain


This medicine may also cause the following side effect that your doctor will watch for:

More common

Heart rhythm problems

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

Red eyes


Less common

Numbness or tingling of hands or feet

skin discoloration

skin rash at place of injection

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.

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