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Drug Interactions between gemfibrozil and Letairis

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

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Interactions between your drugs

Moderate

gemfibrozil ambrisentan

Applies to: gemfibrozil and Letairis (ambrisentan)

ADJUST DOSE: Coadministration with gemfibrozil may increase the plasma concentrations of drugs that are substrates of the organic anion transporting polypeptide (OATP) 1B1 transporter. The mechanism is decreased clearance due to inhibition of OATP 1B1-mediated hepatic uptake by gemfibrozil and its metabolite, gemfibrozil 1-O-beta-glucuronide. The clinical relevance of this interaction is unknown.

MANAGEMENT: A dosage reduction of OATP 1B1 substrates may be required when used with gemfibrozil. Clinical and laboratory monitoring may be appropriate for some drugs whenever gemfibrozil is added to or withdrawn from therapy.

References

  1. (2007) "Product Information. Lasix (furosemide)." sanofi-aventis
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."

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Drug and food interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

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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