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Drug Interactions between moxifloxacin / triamcinolone and paclitaxel

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

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Interactions between your drugs

Major

triamcinolone moxifloxacin

Applies to: moxifloxacin / triamcinolone and moxifloxacin / triamcinolone

MONITOR CLOSELY: Concomitant administration of corticosteroids may potentiate the risk of tendinitis and tendon rupture associated with fluoroquinolone treatment. The mechanism is unknown. Tendinitis and tendon rupture have most frequently involved the Achilles tendon, although cases involving the rotator cuff (the shoulder), the hand, the biceps, and the thumb have also been reported. Some have required surgical repair or resulted in prolonged disability. Tendon rupture can occur during or up to several months after completion of fluoroquinolone therapy.

MANAGEMENT: Caution is recommended if fluoroquinolones are prescribed in combination with corticosteroids, particularly in patients with other concomitant risk factors (e.g., age over 60 years; recipient of kidney, heart, and/or lung transplant). Patients should be advised to stop taking the fluoroquinolone, avoid exercise and use of the affected area, and promptly contact their physician if they experience pain, swelling, or inflammation of a tendon. In general, fluoroquinolones should only be used to treat conditions that are proven or strongly suspected to be caused by bacteria and only if the benefits outweigh the risks.

References (7)
  1. (2002) "Product Information. Cipro (ciprofloxacin)." Bayer
  2. (2001) "Product Information. Levaquin (levofloxacin)." Ortho McNeil Pharmaceutical
  3. (2001) "Product Information. Avelox (moxifloxacin)." Bayer
  4. Khaliq Y, Zhanel GG (2003) "Fluoroquinolone-Associated Tendinopathy: A Critical Review of the Literature." Clin Infect Dis, 36, p. 1404-1410
  5. van der Linden PD, Sturkenboom MC, Herings RM, Leufkens HM, Rowlands S, Stricker BH (2003) "Increased risk of achilles tendon rupture with quinolone antibacterial use, especially in elderly patients taking oral corticosteroids." Arch Intern Med, 163, p. 1801-7
  6. FDA. U.S. Food and Drug Administration (2008) Information for Healthcare Professionals. Fluoroquinolone Antimicrobial Drugs. FDA Alert [7/8/2008]. http://www.fda.gov/cder/drug/InfoSheets/HCP/fluoroquinolonesHCP.htm
  7. (2017) "Product Information. Baxdela (delafloxacin)." Melinta Therapeutics, Inc.
Minor

PACLitaxel moxifloxacin

Applies to: paclitaxel and moxifloxacin / triamcinolone

Limited data suggest that chemotherapy with antineoplastic agents may reduce the plasma concentrations of oral quinolone antibiotics. The proposed mechanism is decreased quinolone absorption secondary to alteration of intestinal mucosa by cancer chemotherapy. In six patients with newly diagnosed hematologic malignancy, treatment with various antineoplastic agents (cyclophosphamide, cytarabine, daunorubicin, doxorubicin, mitoxantrone, prednisolone, vincristine) decreased the mean peak serum concentration (Cmax) and area under the concentration-time curve (AUC 0 to 4 hours) of ciprofloxacin by approximately 46% each. Data are not available for other quinolone antibiotics.

References (1)
  1. Johnson EJ, MacGowan AP, Potter MN, et al. (1990) "Reduced absorption of oral ciprofloxacin after chemotherapy for haematological malignancy." J Antimicrob Chemother, 25, p. 837-42

Drug and food interactions

Moderate

PACLitaxel food

Applies to: paclitaxel

MONITOR: Coadministration with inhibitors of CYP450 3A4, such as grapefruit juice, may increase the plasma concentrations of paclitaxel, which is a substrate of the isoenzyme. Current data suggest that consumption of large quantities of grapefruit juice inhibit both intestinal and hepatic CYP450 3A4 due to certain compounds present in grapefruit. Specific data for paclitaxel are lacking; however, in a case report of a 52-year-old woman with esophageal squamous cell carcinoma receiving a twice weekly chemotherapy regimen including intravenous docetaxel (40 mg/m2) reported that docetaxel systemic exposure (AUC) increased by 65% compared with the AUC target of 1.96 mg*h/L and clearance decreased by 63%, with a 71% reduction in the patient's neutrophil count. In the absence of other CYP450 3A4 inhibitors, these effects were attributed to daily consumption of 250 mL of grapefruit juice, which the patient had been consuming for at least 3 months. Two weeks after the patient ceased the grapefruit juice, the docetaxel AUC was closer to the target value and the neutrophil count reduction was less than 35%. In addition, in a pharmacokinetic study consisting of 7 cancer patients, mean dose-normalized docetaxel AUC increased by 2.2-fold and clearance decreased by 49% when intravenous docetaxel was given at a reduced dosage of 10 mg/m2 in combination with the potent CYP450 3A4 inhibitor ketoconazole (200 mg orally once daily for 3 days) compared to docetaxel administered alone at 100 mg/m2.

MANAGEMENT: Caution is recommended if paclitaxel is to be used in combination with grapefruit and grapefruit juice. Patients should be closely monitored for the development of paclitaxel toxicity, including diarrhea, mucositis, myelosuppression, and peripheral neuropathy and dose adjustment considered per local treatment protocols.

References (9)
  1. (2001) "Product Information. Taxotere (docetaxel)." Rhone Poulenc Rorer
  2. Aronson JK, Grahame-Smith DG (1981) "Clinical pharmacology: adverse drug interactions." Br Med J, 282, p. 288-91
  3. McInnes GT, Brodie MJ (1988) "Drug interactions that matter: a critical reappraisal." Drugs, 36, p. 83-110
  4. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  5. Yong WP, Wang LZ, Tham LS, et al. (2008) "A phase I study of docetaxel with ketoconazole modulation in patients with advanced cancers." Cancer Chemother Pharmacol, 62, p. 243-51
  6. Cerner Multum, Inc. "Australian Product Information."
  7. Engels FK, Mathot RA, Loos WJ, van Schaik RH, Verweij J (2006) "Influence of high-dose ketoconazole on the pharmacokinetics of docetaxel." Cancer Biol Ther, 5, p. 833-9
  8. Valenzuela B, Rebollo J, Perez T, Brugarolas A, Perez-Ruixo JJ (2011) "Effect of grapefruit juice on the pharmacokinetics of docetaxel in cancer patients: a case report." Br J Clin Pharmacol
  9. Starr SP, Hammann F, Gotta V, et al. (2016) "Pharmacokinetic interaction between taxanes and amiodarone leading to severe toxicity." Br J Clin Pharmacol, 450, p. 22-27

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.