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Drug Interactions between osimertinib and Pep-Back ReCharge

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

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Interactions between your drugs

Moderate

caffeine osimertinib

Applies to: Pep-Back ReCharge (caffeine) and osimertinib

MONITOR: Coadministration with osimertinib may decrease the plasma concentrations of drugs that are primarily metabolized by CYP450 1A2. In vitro, osimertinib has been shown to be an inducer of the isoenzyme. However, no pharmacokinetic data are available from drug interaction studies.

MANAGEMENT: Caution is advised when osimertinib is prescribed with drugs that undergo metabolism by CYP450 1A2. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever osimertinib is added to or withdrawn from therapy. Sensitive CYP450 1A2 substrates or substrates with narrow therapeutic ranges (e.g., theophylline) should preferably be avoided with osimertinib, if possible.

References (1)
  1. (2015) "Product Information. Tagrisso (osimertinib)." Astra-Zeneca Pharmaceuticals

Drug and food interactions

Minor

caffeine food

Applies to: Pep-Back ReCharge (caffeine)

The effect of grapefruit juice on the pharmacologic activity of caffeine is controversial. One report suggests that grapefruit juice increases the effect of caffeine. The proposed mechanism is inhibition of cytochrome P-450 metabolism of caffeine. However, a well-conducted pharmacokinetic/pharmacodynamic study did not demonstrate this effect. The clinical significance of this potential interaction is unknown.

References (2)
  1. (1995) "Grapefruit juice interactions with drugs." Med Lett Drugs Ther, 37, p. 73-4
  2. Maish WA, Hampton EM, Whitsett TL, Shepard JD, Lovallo WR (1996) "Influence of grapefruit juice on caffeine pharmacokinetics and pharmacodynamics." Pharmacotherapy, 16, p. 1046-52

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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