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Drug Interactions between armodafinil and conivaptan

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

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Interactions between your drugs

Minor

conivaptan armodafinil

Applies to: conivaptan and armodafinil

Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations of modafinil (the racemate) and armodafinil (the R-enantiomer), which are both partially metabolized by the isoenzyme. Conversely, the plasma levels of some of these inhibitors may decrease, since many of them are also substrates of CYP450 3A4, and modafinil and armodafinil have been found to be modest inducers of CYP450 3A4. The clinical significance of this potential interaction is unknown. Clinical monitoring for altered effects of modafinil and armodafinil as well as the CYP450 3A4 inhibitor may be appropriate following addition or withdrawal of one or the other drug. Dose adjustments may be required if an interaction is suspected.

References

  1. "Product Information. Provigil (modafinil)." Cephalon, Inc PROD (2001):
  2. "Product Information. Nuvigil (armodafinil)." Cephalon Inc (2007):
  3. Cerner Multum, Inc. "Australian Product Information." O 0

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Drug and food interactions

Minor

armodafinil food

Applies to: armodafinil

Administration with food may delay the absorption of modafinil (the racemate) and armodafinil (the R-enantiomer) without significantly affecting their overall bioavailability. According to the product labeling, modafinil's absorption may be delayed by approximately one hour if taken with food. Similarly, the time to reach peak plasma concentration (Tmax) of armodafinil may be delayed by approximately 2 to 4 hours in the fed state.

References

  1. "Product Information. Provigil (modafinil)." Cephalon, Inc PROD (2001):
  2. "Product Information. Nuvigil (armodafinil)." Cephalon Inc (2007):

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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.

See also

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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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