Drug Interactions between idelalisib and Levaquin
This report displays the potential drug interactions for the following 2 drugs:
- idelalisib
- Levaquin (levofloxacin)
Interactions between your drugs
levoFLOXacin idelalisib
Applies to: Levaquin (levofloxacin) and idelalisib
GENERALLY AVOID: Coadministration of idelalisib with other agents known to induce hepatotoxicity may potentiate the risk of liver injury. The use of idelalisib has been associated with elevations in alanine aminotransferase (ALT) and aspartate aminotransferase (AST) greater than 5 times the upper limit of normal. Serious and fatal hepatotoxicity occurred in 14% of patients treated with idelalisib in premarketing trials. Liver enzyme elevations were generally observed within the first 12 weeks of treatment and were reversible with dose interruption. Following treatment resumption at a lower dose, 26% of patients had recurrence of ALT and AST elevations.
MANAGEMENT: The use of idelalisib with other potentially hepatotoxic agents should be avoided whenever possible (e.g., acetaminophen; alcohol; amiodarone; androgens and anabolic steroids; antituberculous agents; azole antifungal agents; ACE inhibitors; cyclosporine (high dosages); disulfiram; endothelin receptor antagonists; interferons; ketolide and macrolide antibiotics; kinase inhibitors; methotrexate; nonsteroidal anti-inflammatory agents; nucleoside reverse transcriptase inhibitors; proteasome inhibitors; retinoids; sulfonamides; tamoxifen; tetracyclines; thiazolidinediones; tolvaptan; vincristine; zileuton; anticonvulsants such as carbamazepine, hydantoins, felbamate, and valproic acid; lipid-lowering medications such as fenofibrate, lomitapide, mipomersen, niacin, and statins; herbals and nutritional supplements such as black cohosh, chaparral, comfrey, DHEA, kava, pennyroyal oil, and red yeast rice). Patients treated with idelalisib should have serum ALT, AST, and bilirubin measured prior to initiation of treatment and regularly during treatment in accordance with the product labeling, and the dosing adjusted or interrupted as necessary. Permanent discontinuation of idelalisib is recommended in those who experience recurrent hepatotoxicity following dosage reduction. Patients should be advised to seek medical attention if they experience potential signs and symptoms of hepatotoxicity such as fever, rash, itching, anorexia, nausea, vomiting, fatigue, malaise, right upper quadrant pain, dark urine, pale stools, and jaundice.
References
- (2014) "Product Information. Zydelig (idelalisib)." Gilead Sciences
Drug and food interactions
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
- 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
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
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
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. | |
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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