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Information to help you better understand UDENYCA and biosimilars
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Learn about administering treatment with the UDENYCA autoinjector
For complete administration instructions, please see the autoinjector Instructions for Use.
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Learn about receiving treatment with UDENYCA ONBODY
For complete administration instructions, refer to the UDENYCA on-body injector Instructions for Use.
Get a better understanding of biosimilars
Learn more about biosimilars with this FDA factsheet.
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Frequently asked questions about UDENYCA and biosimilars

What is UDENYCA?

UDENYCA is a prescription medicine used to help reduce the chance of infection due to a low white blood cell count, in people with certain types of cancer (non-myeloid), who receive anti-cancer medicines (chemotherapy) that can cause fever and low blood cell count.

What are biosimilars?

Biosimilars are FDA-approved biologic medications that are as safe and effective as the original biologics (known as the reference product). Biosimilars have no clinically meaningful differences from the reference product. This means that there is no compromise in safety and effectiveness of the biosimilar when compared to the reference product. Biosimilars introduce competition into the marketplace and can lower the cost of treatment.

Why does chemotherapy cause low white blood cell counts?

Chemotherapy works by targeting cancerous cells. It can also affect and lower healthy cell counts, including the white blood cells that fight infections.

Who should not take UDENYCA?

Do not take UDENYCA if you have had a serious allergic reaction to human G-CSFs, such as pegfilgrastim or filgrastim products.

What should I tell my healthcare provider before taking UDENYCA?

Before you receive UDENYCA, tell your healthcare provider about all of your medical conditions, including if you have a sickle cell disorder, have kidney problems, are pregnant or plan to become pregnant (it is not known if UDENYCA will harm your unborn baby), are breastfeeding or plan to breastfeed (it is not known if UDENYCA passes into your breast milk).

Tell your healthcare provider about all of the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

What are the most common side effects of UDENYCA?

The most common side effects of UDENYCA are pain in the bones, arms, and legs. These are not all the possible side effects of UDENYCA. Talk with your doctor about any other side effects. Be sure to review the Patient Information for more side effect information.

What are the different ways I can take UDENYCA?

UDENYCA provides 3 administration options, so your doctor can prescribe the one that meets your individual needs:

The UDENYCA prefilled autoinjector
Easy to use self-administration from the comfort of your home
Learn more about the prefilled autoinjector
The UDENYCA on-body injector
Automatic on-the-go injection
Learn more about the on-body injector
The UDENYCA prefilled syringe
Administered in-office by your care team
Learn more about the prefilled syringe

Do I return to my doctor’s office the day after chemotherapy?

UDENYCA offers 3 options for administration. Depending on the administration your doctor prescribes, you may need to return to the office or hospital the day after chemotherapy to receive UDENYCA.

The UDENYCA prefilled syringe is typically administered in your doctor's office by your healthcare team

The UDENYCA autoinjector is typically administered in the comfort of your home, but may also be given by your provider in their office

The UDENYCA on-body injector is set up by your healthcare team the day you receive chemo, and automatically delivers treatment approximately 27 hours later