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Drug Interactions between Cytra-2 and gatifloxacin

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

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Interactions between your drugs

Moderate

citric acid gatifloxacin

Applies to: Cytra-2 (citric acid/sodium citrate) and gatifloxacin

GENERALLY AVOID: Urinary alkalinizers such as citrates may decrease the solubility of fluoroquinolones in the urine and increase the risk of crystalluria.

MANAGEMENT: Concomitant use should generally be avoided. Patients receiving this combination should be monitored for signs of renal toxicity and crystalluria.

References

  1. "Product Information. Cipro (ciprofloxacin)." Bayer PROD (2002):
  2. "Multum Information Services, Inc. Expert Review Panel"

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Moderate

sodium citrate gatifloxacin

Applies to: Cytra-2 (citric acid/sodium citrate) and gatifloxacin

GENERALLY AVOID: Urinary alkalinizers such as citrates may decrease the solubility of fluoroquinolones in the urine and increase the risk of crystalluria.

MANAGEMENT: Concomitant use should generally be avoided. Patients receiving this combination should be monitored for signs of renal toxicity and crystalluria.

References

  1. "Product Information. Cipro (ciprofloxacin)." Bayer PROD (2002):
  2. "Multum Information Services, Inc. Expert Review Panel"

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Drug and food interactions

Minor

gatifloxacin food

Applies to: gatifloxacin

Concurrent ingestion of calcium-fortified foods (i.e., cereal, orange juice) may alter the bioavailability of gatifloxacin. The mechanism is chelation of calcium and the quinolone, resulting in decreased bioavailability. In the case of orange juice, inhibition of intestinal transport mechanisms (P-glycoprotein or organic anion-transporting polypeptides) by flavones may also be involved. Data have been conflicting: One study has reported no effect with milk coadministration. Another study reported a modest decrease in gatifloxacin bioavailability (13.5% decrease in Cmax,12% decrease in AUC, 15% increase in total clearance) when taken with 12 ounces of calcium-fortified orange juice instead of water, which could be clinically significant if the infecting organisms have borderline susceptibilities. The manufacturer states that gatifloxacin may be taken without regard to food, milk, or calcium. Clinicians should be aware of the possibility of an interaction if subtherapeutic effects are observed.

References

  1. "Product Information. Tequin (gatifloxacin)." Bristol-Myers Squibb PROD (2001):
  2. Wallace AW, Victory JM, Amsden GW "Lack of bioequivalence of gatifloxacin when coadministered with calcium-fortified orange juice in healthy volunteers." J Clin Pharmacol 43 (2003): 92-6

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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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