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Drug Interactions between Combunox and everolimus

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

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Interactions between your drugs

Major

ibuprofen everolimus

Applies to: Combunox (ibuprofen / oxycodone) and everolimus

MONITOR CLOSELY: Coadministration of macrolide immunosuppressants with other nephrotoxic agents may increase the risk and/or severity of renal impairment due to additive adverse effects on the kidney. No formal interaction studies have been performed. However, clinical experience in coadministration with cyclosporine indicates increased renal toxicity as evidenced by increased serum creatinine and decreased glomerular filtration rate. An interaction with ibuprofen resulting in acute renal failure was suspected in two liver transplant patients who had been stabilized on tacrolimus.

MANAGEMENT: Caution is advised when macrolide immunosuppressants is used in patients who have recently received or are receiving treatment with other potentially nephrotoxic drugs (e.g., aminoglycosides; polypeptide, glycopeptide, and polymyxin antibiotics; amphotericin B; adefovir; cidofovir; tenofovir; foscarnet; cisplatin; cyclosporine; deferasirox; gallium nitrate; lithium; mesalamine; intravenous bisphosphonates; intravenous pentamidine; high intravenous dosages of methotrexate; high dosages and/or chronic use of nonsteroidal anti-inflammatory agents). Renal function should be closely monitored both during and after discontinuation of therapy. Patients should be advised to seek medical attention if they experience symptoms that may indicate nephrotoxicity such as decreased urine output, sudden weight gain, fluid retention, edema, or shortness of breath.

References

  1. Sheiner PA, Mor E, Chodoff L, Glabman S, Emre S, Schwartz ME, Miller CM (1994) "Acute renal, failure associated with the use of ibuprofen in two liver transplant recipients on FK506." Transplantation, 57, p. 1132-3
  2. (2001) "Product Information. Prograf (tacrolimus)." Fujisawa
  3. (2001) "Product Information. Rapamune (sirolimus)." Wyeth-Ayerst Laboratories

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Drug and food interactions

Major

oxyCODONE food

Applies to: Combunox (ibuprofen / oxycodone)

GENERALLY AVOID: Alcohol may potentiate the central nervous system (CNS) depressant effects of opioid analgesics including oxycodone. 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.

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of oxycodone. The proposed mechanism is inhibition of CYP450 3A4-mediated metabolism of oxycodone by certain compounds present in grapefruit, resulting in decreased formation of metabolites noroxycodone and noroxymorphone and increased formation of oxymorphone due to a presumed shifting of oxycodone metabolism towards the CYP450 2D6-mediated route. In 12 healthy, nonsmoking volunteers, administration of a single 10 mg oral dose of oxycodone hydrochloride on day 4 of a grapefruit juice treatment phase (200 mL three times a day for 5 days) increased mean oxycodone peak plasma concentration (Cmax), systemic exposure (AUC) and half-life by 48%, 67% and 17% (from 3.5 to 4.1 hours), respectively, compared to administration during an equivalent water treatment phase. Grapefruit juice also decreased the metabolite-to-parent AUC ratio of noroxycodone by 44% and that of noroxymorphone by 45%. In addition, oxymorphone Cmax and AUC increased by 32% and 56%, but the metabolite-to-parent AUC ratio remained unchanged. Pharmacodynamic changes were modest and only self-reported performance was significantly impaired after grapefruit juice. Analgesic effects were not affected.

MANAGEMENT: Patients should not consume alcoholic beverages or use drug products that contain alcohol during treatment with oxycodone. Any history of alcohol or illicit drug use should be considered when prescribing oxycodone, and therapy initiated at a lower dosage if necessary. Patients should be closely monitored for signs and symptoms of sedation, respiratory depression, and hypotension. Due to a high degree of interpatient variability with respect to grapefruit juice interactions, patients treated with oxycodone may also want to avoid or limit the consumption of grapefruit and grapefruit juice.

References

  1. Nieminen TH, Hagelberg NM, Saari TI, et al. (2010) "Grapefruit juice enhances the exposure to oral oxycodone." Basic Clin Pharmacol Toxicol, 107, p. 782-8

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Moderate

everolimus food

Applies to: everolimus

GENERALLY AVOID: Grapefruit juice may significantly increase the plasma concentrations of orally administered everolimus. The mechanism is inhibition of CYP450 3A4 and P-glycoprotein activity in the gut wall by certain compounds present in grapefruit.

MANAGEMENT: Patients treated with everolimus should avoid consumption of grapefruit and grapefruit juice.

References

  1. (2009) "Product Information. Afinitor (everolimus)." Novartis Pharmaceuticals

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Moderate

ibuprofen food

Applies to: Combunox (ibuprofen / oxycodone)

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. (2002) "Product Information. Motrin (ibuprofen)." Pharmacia and Upjohn

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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.


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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.