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Drug Interaction Report

2 potential interactions and/or warnings found for the following 2 drugs:

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Interactions between your drugs

Moderate

pantoprazole etravirine

Applies to: Protonix (pantoprazole), etravirine

MONITOR: Coadministration with etravirine may increase the plasma concentrations of drugs that are substrates of the CYP450 2C19 and/or 2C9 isoenzymes. The mechanism is decreased clearance due to inhibition of these isoenzymes by etravirine.

MANAGEMENT: Caution is advised if etravirine must be used concomitantly with medications that undergo metabolism by CYP450 2C19 and/or 2C9 , particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever etravirine is added to or withdrawn from therapy.

References

  1. (2008) "Product Information. Intelence (etravirine)." Ortho Biotech Inc

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Drug and food interactions

Moderate

etravirine food

Applies to: etravirine

ADJUST DOSING INTERVAL: Coadministration with food increases the oral bioavailability of etravirine. The mechanism is unknown. Compared to administration following a meal, the systemic exposure (AUC) to etravirine was decreased by about 50% when the drug was administered under fasting conditions. The types of meal studied (ranging from 345 kilocalories containing 17 grams fat to 1160 kilocalories containing 70 grams fat) did not appear to make a difference with respect to impact on etravirine bioavailability.

MANAGEMENT: Etravirine should always be administered following a meal.

References

  1. (2008) "Product Information. Intelence (etravirine)." Ortho Biotech Inc

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Therapeutic duplication warnings

No duplication 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.

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Further information

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

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