Nusinersen
Ryzneuta is a prescription medication used to reduce the risk of infection in patients with non-myeloid cancers undergoing chemotherapy that causes low white blood cell counts. It belongs to a class of drugs called granulocyte colony-stimulating factors (G-CSFs) and is administered as a subcutaneous injection.
Ryzneuta helps prevent infections in cancer patients by boosting white blood cell production during chemotherapy.
Key facts at a glance
- RxNorm
- 2670664
- Generic
- Ryzneuta
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Ryzneuta is used to reduce the incidence of infection, as manifested by febrile neutropenia, in patients with non-myeloid malignancies receiving myelosuppressive anti-cancer drugs associated with a clinically significant incidence of febrile neutropenia.
Ryzneuta contains pegfilgrastim, a long-acting form of granulocyte colony-stimulating factor (G-CSF) that binds to specific receptors on bone marrow cells, stimulating the production, maturation, and activation of neutrophils (a type of white blood cell essential for fighting infections).
Ryzneuta is administered as a single subcutaneous injection once per chemotherapy cycle. Common side effects include bone pain, joint pain, and muscle pain. Patients with known hypersensitivity to pegfilgrastim or filgrastim should not use this medication. Rare but serious risks include splenic rupture and acute respiratory distress syndrome. Available only by prescription.
Official drug label
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy