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Drug Interactions between Nexium and Tykerb

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

  • Nexium (esomeprazole)
  • Tykerb (lapatinib)

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Interactions between your drugs

Moderate

esomeprazole lapatinib

Applies to: Nexium (esomeprazole) and Tykerb (lapatinib)

Talk to your doctor before using lapatinib together with esomeprazole. In some patients, esomeprazole may interfere with the absorption of lapatinib and reduce its effectiveness. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. 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

esomeprazole food

Applies to: Nexium (esomeprazole)

Food may interfere with the absorption of esomeprazole. Esomeprazole should be taken at least one hour before meals and at the same time every day. When esomeprazole is given to patients receiving continuous enteral nutrition (tube feedings), the tube feeding should be interrupted for at least 1 hour before and 1 hour after the dose of esomeprazole. This will make it easier for your body to absorb the medication. 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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Moderate

lapatinib food

Applies to: Tykerb (lapatinib)

Take lapatinib on an empty stomach 1 hour before or 1 hour after a meal unless otherwise directed by your doctor. This will make it easier for your body to absorb the medication. The lapatinib dose is administered once daily and should not be divided. The usual dose of lapatinib is equal to 5 tablets. You may swallow each tablet one at a time, but take the entire lapatinib dose at the same time each day. If you are receiving therapy with lapatinib you should be advised to avoid grapefruits and grapefruit juice. Grapefruit can raise the levels of lapatinib in your body and lead to dangerous side effects.

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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.

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.