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Drug Interactions between bromfenac and Levaquin

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

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Interactions between your drugs

Moderate

levoFLOXacin bromfenac

Applies to: Levaquin (levofloxacin) and bromfenac

MONITOR: Coadministration with nonsteroidal anti-inflammatory drugs (NSAIDs) may potentiate the risk of central nervous system toxicity sometimes associated with fluoroquinolone use. The interaction has been reported most often with enoxacin. It may occur with other fluoroquinolones as well, but is poorly documented. The exact mechanism of interaction is unknown. Some investigators suggest that the piperazine ring of fluoroquinolones may inhibit the binding of gamma-aminobutyric acid (GABA) to brain receptors and that NSAIDs may synergistically add to this effect. Patients with a history of seizures may be at greater risk.

MANAGEMENT: Clinical monitoring for signs of CNS stimulation such as tremors, involuntary muscle movements, hallucinations, or seizures is recommended if fluoroquinolone antibiotics are prescribed in combination with NSAIDs.

References

  1. Ball P (1986) "Ciprofloxacin: an overview of adverse experiences." J Antimicrob Chemother, 18, p. 187-93
  2. Hooper DC, Wolfson JS (1985) "The fluoroquinolones: pharmacology, clinical uses, and toxicities in humans." Antimicrob Agents Chemother, 28, p. 716-21
  3. (2002) "Product Information. Cipro (ciprofloxacin)." Bayer
  4. (2002) "Product Information. Penetrex (enoxacin)." Rhone Poulenc Rorer
  5. (2001) "Product Information. Floxin (ofloxacin)." Ortho McNeil Pharmaceutical
  6. Domagala JM (1994) "Structure-activity and structure-side-effect relationships for the quinolone antibacterials." J Antimicrob Chemother, 33, p. 685-706
  7. (2001) "Product Information. Levaquin (levofloxacin)." Ortho McNeil Pharmaceutical
  8. (2001) "Product Information. Raxar (grepafloxacin)." Glaxo Wellcome
  9. Davey PG (1988) "Overview of drug interactions with the quinolones." J Antimicrob Chemother, 22(suppl c), p. 97-107
  10. Ball P, Tillotson G (1996) "Tolerability of fluoroquinolone antibiotics: past, present and future." Drug Saf, 13, p. 343-8
  11. (2001) "Product Information. Avelox (moxifloxacin)." Bayer
  12. (2001) "Product Information. Tequin (gatifloxacin)." Bristol-Myers Squibb
  13. (2003) "Product Information. Factive (gemifloxacin)." *GeneSoft Inc
  14. Segev S. Rehavi M, Rubinstein E (1988) "Quinolones, theophylline, and diclofenac interactions with the gamma-aminobutyric acid receptor." Antimicrob Agents Chemother, 32, p. 1624-6
View all 14 references

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Drug and food interactions

Moderate

levoFLOXacin food

Applies to: Levaquin (levofloxacin)

ADJUST DOSING INTERVAL: Food may reduce the oral absorption and bioavailability of levofloxacin. According to the drug product labeling, administration of levofloxacin 500 mg with food prolonged the time to peak concentration by 1 hour and decreased the Cmax decreased by 25% following administration of the oral solution and by 14% following administration of the oral tablet.

MANAGEMENT: To ensure maximal and consistent oral absorption, levofloxacin oral solution should be taken at least one hour before or two hours after meals. For administration of the oral solution with continuous enteral nutrition, some experts recommend that the tube feeding should be interrupted for one hour before and two hours after the dose of levofloxacin. The oral tablets may be taken without regard to food.

References

  1. Wohlt PD, Zheng L, Gunderson S, Balzar SA, Johnson BD, Fish JT (2009) "Recommendations for the use of medications with continuous enteral nutrition." Am J Health Syst Pharm, 66, p. 1438-67

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Moderate

bromfenac food

Applies to: bromfenac

ADJUST DOSE: In-vivo studies have demonstrated that the absorption of bromfenac is greatly reduced if the drug is taken within three and one-half hours following a high fat meal. The concomitant administration of a high fat meal has led to a 75% reduction in peak plasma concentrations and a 60% reduction in total area under the curve. The mechanism has not been described.

MANAGEMENT: An increased dosage of bromfenac (from 25 to 50 mg) may be needed if a high fat meal is consumed. The clinician may want to warn the patient about subtherapeutic analgesic effects if high fat meals are regularly consumed.

References

  1. "Product Information. DurAct (bromfenac)." Wyeth-Ayerst Laboratories

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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

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