Ruxolitinib Interactions

Ruxolitinib is used to treat myelofibrosis (a cancer of the bone marrow in which the bone marrow is replaced by scar tissue and causes decreased blood cell production). It is also used to treat polycythemia vera (PV; a slow growing cancer of the blood in which the bone marrow makes too many red blood cells) in people who were not able to be treated successfully with hydroxyurea. Ruxolitinib is also used to treat acute graft versus host disease (aGVHD; a complication of hematopoietic stem-cell transplant [HSCT; a procedure that replaces diseased bone marrow with healthy bone marrow] that usually develops within the first months after HSCT) in adults and children 12 years of age and older who were treated unsuccessfully with steroid medications. It is also used to treat chronic GVHD (cGVHD; a complication of HSCT that usually develops at least 3 months after HSCT) in adults and children 12 years of age and older who were treated unsuccessfully with 1 or 2 other treatments. Ruxolitinib is in a class of medications called kinase inhibitors. It works to treat myelofibrosis and PV by blocking the signals that cause cancer cells to multiply. This helps to stop the spread of cancer cells. It works to treat GVHD by blocking the signals of the cells that cause GVHD.

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Brand Names Associated with Ruxolitinib

  • Jakafi
  • Ruxolitinib

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The drugs below are categorized by the severity of their interaction (see description of categories at the bottom of the page).

Click the drug name (listed by the generic name) to view specific drug-drug interaction details.

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What Do The Severity Ratings Mean?


These drugs, generally, should not be used together simultaneously due to the high risk of severe adverse effects. Combining these medications can lead to dangerous health outcomes and should be strictly avoided unless otherwise instructed by your provider.


This interaction could result in very serious and potentially life-threatening consequences. If you are taking this drug combination, it is very important to be under close medical supervision to minimize severe side effects and ensure your safety. It may be necessary to change a medication or dosage to prevent harm.


This interaction has the potential to worsen your medical condition or alter the effectiveness of your treatment. It's important that you are monitored closely and you potentially may need to make adjustments in your treatment plan or drug dosage to maintain optimal health.


While this interaction is unlikely to cause significant problems, it could intensify side effects or reduce the effectiveness of one or both medications. Monitoring for changes in symptoms and your condition is recommended, and adjustments may be made if needed to manage any increased or more pronounced side effects.

Disclaimer: The information provided on this page is for informational purposes only and should not be considered medical advice. Always consult with a qualified healthcare professional regarding your specific circumstances and medical conditions.

Drug interaction information is compilated from several drug compendia, including:

  • Gold Standard Drug Database
  • Micromedix
  • Lexicomp
  • PubMed

The information posted is fact-checked by HelloPharmacist clinicians and reviewed quarterly.