Zanubrutinib
Written By Dr. Sakshi Jain
Reviewed By Dr. Rajeev SharmaLast updated 31 Mar 2026 | 09:38 AM (UTC)
Zanubrutinib Uses
Zanubrutinib is used in the treatment of mantle-cell lymphoma, Waldenström's Macroglobulinemia, Marginal Zone Lymphoma, Small Lymphocytic Lymphoma and follicular lymphoma.
How Zanubrutinib works
Zanubrutinib works by selectively inhibiting a protein called Bruton’s tyrosine kinase (BTK). It plays an important role in the growth and survival of certain white blood cells. This medicine inhibits BTK, which reduces the growth and survival of these abnormal cells. As a result, it helps control disease progression.
Common side effects of Zanubrutinib
Decreased white blood cell count (neutrophils), Low blood platelets, Upper respiratory tract infection, Hemorrhage, Musculoskeletal (bone, muscle or joint) pain
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Expert advice for Zanubrutinib
- During treatment with Zanubrutinib, your doctor may advise regular blood tests to monitor blood cell counts. This helps detect early changes such as low neutrophils or platelets, allowing timely management and reducing the risk of complications during treatment.
- Be alert for signs of infection, such as fever, cough, or unusual fatigue. This medicine may increase the risk of infections, including serious ones. Early reporting of symptoms can help in prompt treatment and prevent worsening of the condition.
- Watch for any unusual bleeding or bruising, such as nosebleeds, blood in urine, or prolonged bleeding from cuts. Zanubrutinib may increase the risk of bleeding. Immediate medical attention may be required if such symptoms occur.
- Inform your doctor before any planned surgery or dental procedure. This medicine may increase the risk of bleeding. Temporary interruption of treatment may be required depending on the procedure and clinical condition.
- Monitor for symptoms such as palpitations, dizziness, or shortness of breath. This medicine may be associated with heart rhythm problems. Prompt reporting of such symptoms allows early evaluation and management.
- Use effective contraception during treatment and avoid pregnancy. This medicine may cause harm to the unborn baby. Discuss appropriate contraceptive methods with your doctor before starting treatment.
- Limit sun exposure and use protective measures such as sunscreen and protective clothing. There may be an increased risk of developing skin-related malignancies during treatment.
- Inform your doctor about all medications, including herbal products, before starting this medicine. Certain medicines can affect how this drug works, especially those that influence liver enzymes involved in drug metabolism.
Frequently asked questions for Zanubrutinib
Zanubrutinib works by blocking a protein called Bruton’s tyrosine kinase (BTK). It plays an important role in the growth and survival of abnormal B-cells. Inhibiting this protein, it reduces the multiplication of cancer cells and helps control disease progression.
Zanubrutinib is a targeted therapy, not traditional chemotherapy. It works by acting on a protein involved in cancer cell growth. This allows it to target abnormal cells while limiting effects on normal cells compared with conventional chemotherapy.
It starts acting in the body soon after administration. However, noticeable clinical improvement may take time and varies between individuals. Treatment is usually continued long-term as advised by a doctor to maintain disease control.
Yes, this medicine may increase the risk of infections because it affects the immune system function. Patients should be monitored for signs of infection, such as fever or persistent cough, and seek medical advice if symptoms occur.
Yes, it may increase the risk of bleeding, including serious bleeding in some cases. Patients should inform their doctor if they notice unusual bruising or bleeding or if they are taking blood thinners.
It may interact with certain medicines, especially those affecting liver enzymes. Always inform your doctor about all medications you are taking to avoid interactions.