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Drug Interactions between Bosulif and siponimod

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Major

bosutinib siponimod

Applies to: Bosulif (bosutinib) and siponimod

Before starting siponimod, let your doctor know if you are currently receiving treatment with bosutinib. Using siponimod in this situation can increase the risk of an irregular heart rhythm that may be serious or life-threatening. This is most likely to occur within 5 to 6 days after starting treatment with siponimod. Talk to your doctor if you are uncertain whether you should be treated with these medications at the same time. Contact your doctor if you develop dizziness, lightheadedness, fainting, shortness of breath, chest pain, or heart palpitations during treatment.

Combining these medications can also increase the risk of serious infections. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Because siponimod can remain in your blood after the last dose, interactions with other drugs may occur for some time even after you have stopped taking it. Contact your doctor immediately if you develop signs and symptoms of infection such as fever, chills, diarrhea, sore throat, muscle aches, shortness of breath, blood in phlegm, weight loss, red or inflamed skin, body sores, and pain or burning during urination. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Drug and food interactions

Moderate

bosutinib food

Applies to: Bosulif (bosutinib)

Bosutinib should be taken with a meal to help with its absorption. Do not consume grapefruit, grapefruit juice, or any supplements that contain grapefruit extract during treatment with bosutinib unless directed otherwise by your doctor. Grapefruit juice can significantly increase the blood levels of bosutinib. You may be more likely to experience side effects such as nausea, vomiting, abdominal pain, diarrhea, liver damage, and impaired bone marrow function resulting in low numbers of different types of blood cells, which can increase the risk of anemia, bleeding problems, and infections. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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