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Drug Interactions between aspirin / codeine and gatifloxacin

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

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Interactions between your drugs

Moderate

aspirin gatifloxacin

Applies to: aspirin / codeine and gatifloxacin

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 (14)
  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

Drug and food interactions

Moderate

codeine food

Applies to: aspirin / codeine

GENERALLY AVOID: Ethanol may potentiate the central nervous system (CNS) depressant effects of opioid analgesics. Concomitant use may result in additive CNS depression and impairment of judgment, thinking, and psychomotor skills. In more severe cases, hypotension, respiratory depression, profound sedation, coma, or even death may occur.

MANAGEMENT: Concomitant use of opioid analgesics with ethanol should be avoided.

References (9)
  1. Linnoila M, Hakkinen S (1974) "Effects of diazepam and codeine, alone and in combination with alcohol, on simulated driving." Clin Pharmacol Ther, 15, p. 368-73
  2. Sturner WQ, Garriott JC (1973) "Deaths involving propoxyphene: a study of 41 cases over a two-year period." JAMA, 223, p. 1125-30
  3. Girre C, Hirschhorn M, Bertaux L, et al. (1991) "Enhancement of propoxyphene bioavailability by ethanol: relation to psychomotor and cognitive function in healthy volunteers." Eur J Clin Pharmacol, 41, p. 147-52
  4. Levine B, Saady J, Fierro M, Valentour J (1984) "A hydromorphone and ethanol fatality." J Forensic Sci, 29, p. 655-9
  5. Sellers EM, Hamilton CA, Kaplan HL, Degani NC, Foltz RL (1985) "Pharmacokinetic interaction of propoxyphene with ethanol." Br J Clin Pharmacol, 19, p. 398-401
  6. Carson DJ (1977) "Fatal dextropropoxyphene poisoning in Northern Ireland. Review of 30 cases." Lancet, 1, p. 894-7
  7. Rosser WW (1980) "The interaction of propoxyphene with other drugs." Can Med Assoc J, 122, p. 149-50
  8. Edwards C, Gard PR, Handley SL, Hunter M, Whittington RM (1982) "Distalgesic and ethanol-impaired function." Lancet, 2, p. 384
  9. Kiplinger GF, Sokol G, Rodda BE (1974) "Effect of combined alcohol and propoxyphene on human performance." Arch Int Pharmacodyn Ther, 212, p. 175-80
Moderate

aspirin food

Applies to: aspirin / codeine

GENERALLY AVOID: The concurrent use of aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) and ethanol may lead to gastrointestinal (GI) blood loss. The mechanism may be due to a combined local effect as well as inhibition of prostaglandins leading to decreased integrity of the GI lining.

MANAGEMENT: Patients should be counseled on this potential interaction and advised to refrain from alcohol consumption while taking aspirin or NSAIDs.

References (1)
  1. (2002) "Product Information. Motrin (ibuprofen)." Pharmacia and Upjohn
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 (2)
  1. (2001) "Product Information. Tequin (gatifloxacin)." Bristol-Myers Squibb
  2. Wallace AW, Victory JM, Amsden GW (2003) "Lack of bioequivalence of gatifloxacin when coadministered with calcium-fortified orange juice in healthy volunteers." J Clin Pharmacol, 43, p. 92-6
Minor

aspirin food

Applies to: aspirin / codeine

One study has reported that coadministration of caffeine and aspirin lead to a 25% increase in the rate of appearance and 17% increase in maximum concentration of salicylate in the plasma. A significantly higher area under the plasma concentration time curve of salicylate was also reported when both drugs were administered together. The exact mechanism of this interaction has not been specified. Physicians and patients should be aware that coadministration of aspirin and caffeine may lead to higher salicylate levels faster.

References (1)
  1. Yoovathaworn KC, Sriwatanakul K, Thithapandha A (1986) "Influence of caffeine on aspirin pharmacokinetics." Eur J Drug Metab Pharmacokinet, 11, p. 71-6

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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