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Drug Interactions between Aciphex and Posicor

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

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Interactions between your drugs

Moderate

mibefradil RABEprazole

Applies to: Posicor (mibefradil) and Aciphex (rabeprazole)

MONITOR: Based on in vitro inhibition data, coadministration with mibefradil may increase the plasma concentrations of drugs that are substrates of CYP450 2D6 and/or 3A4. The mechanism is decreased clearance due to inhibition of these isoenzymes by mibefradil.

MANAGEMENT: Caution is advised when mibefradil is used concomitantly with drugs that undergo metabolism by CYP450 2D6 and/or 3A4, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever mibefradil is added to or withdrawn from therapy.

References

  1. "Product Information. Posicor (mibefradil)." Roche Laboratories PROD (2001):
  2. Varis T, Backman JT, Kivisto KT, Neuvonen PJ "Diltiazem and mibefradil increase the plasma concentrations and greatly enhance the adrenal-suppressant effect of oral methylprednisolone." Clin Pharmacol Ther 67 (2000): 215-21

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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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