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Drug Interactions between Hycamtin and Jet Alert Double Strength

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

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Interactions between your drugs

Minor

caffeine topotecan

Applies to: Jet Alert Double Strength (caffeine) and Hycamtin (topotecan)

The cytotoxic and cytostatic activity of topotecan may be diminished in the presence of caffeine. The mechanism is probably formation of complexes between caffeine and topotecan which result in reducing the effective concentration of the free form of topotecan. The clinical implications of this interaction are unknown.

References

  1. Traganos F, Kapuscinski J, Gong J, Ardelt B, Darzynkiewicz RJ, Darzynkiewicz Z (1993) "Caffeine prevents apoptosis and cell cycle effects induced by camptothecin or topotecan in HL-60 cells." Cancer Res, 53, p. 4613-8

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Drug and food interactions

Minor

caffeine food

Applies to: Jet Alert Double Strength (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

  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

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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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