Drug Interaction Report
2 potential interactions and/or warnings found for the following 2 drugs:
- fluconazole
- Zortress (everolimus)
Interactions between your drugs
fluconazole everolimus
Applies to: fluconazole, Zortress (everolimus)
ADJUST DOSE: Coadministration with moderate inhibitors of CYP450 3A4 and P-glycoprotein may significantly increase the plasma concentrations of everolimus following oral administration. Everolimus is a substrate of both the CYP450 3A4 isoenzyme and P-glycoprotein drug efflux transporter, thus their inhibition in the intestine can enhance the absorption of everolimus. The risk of side effects such as pneumonitis, stomatitis, infection, dyspnea, diarrhea, anemia, leucopenia, thrombocytopenia, hyperglycemia, and hyperlipidemia may be increased.
MANAGEMENT: Blood trough levels should be closely monitored, and the dosage adjusted accordingly during concomitant administration and after discontinuation of moderate CYP450 3A4 and P-glycoprotein inhibitors. The manufacturer's drug product labeling should be consulted for specific recommendations.
References (1)
- (2009) "Product Information. Afinitor (everolimus)." Novartis Pharmaceuticals
Drug and food interactions
everolimus food
Applies to: Zortress (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
Therapeutic duplication warnings
No duplication 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.
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. |
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Further information
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