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Drug Interactions between daclatasvir and Xifaxan

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

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Interactions between your drugs

Moderate

rifAXIMin daclatasvir

Applies to: Xifaxan (rifaximin) and daclatasvir

MONITOR: Coadministration with daclatasvir may increase the plasma concentrations of drugs that are substrates of the P-glycoprotein (P-gp) transporter. The proposed mechanism is decreased clearance in the intestine, liver, and/or kidney due to inhibition of P-glycoprotein-mediated drug efflux by daclatasvir. When 0.125 mg once daily of digoxin, a P-gp probe substrate, was administered with 60 mg once daily daclatasvir, digoxin peak plasma concentration (Cmax) and systemic exposure (AUC) increased by 65% and 27%, respectively.

MANAGEMENT: Caution is advised when daclatasvir is used concurrently with drugs that are known P-gp substrates, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever daclatasvir is added to or withdrawn from therapy.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2015) "Product Information. Daklinza (daclatasvir)." Bristol-Myers Squibb

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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