Drug Interaction Report
1 potential interaction and/or warning found for the following 2 drugs:
- isavuconazonium
- Talicia (amoxicillin / omeprazole / rifabutin)
Interactions between your drugs
rifabutin isavuconazonium
Applies to: Talicia (amoxicillin / omeprazole / rifabutin), isavuconazonium
CONTRAINDICATED: Coadministration with potent inducers of CYP450 3A4 may significantly decrease the plasma concentrations of isavuconazole, which is primarily metabolized by CYP450 3A4 and 3A5 and subsequently by uridine diphosphate glucuronosyltransferases (UGT). When multiple doses of isavuconazonium sulfate (prodrug of isavuconazole) were administered to healthy volunteers with multiple doses of the potent CYP450 3A4 inducer rifampin (600 mg), mean isavuconazole peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 75% and 97%, respectively.
MANAGEMENT: Concomitant use of isavuconazonium sulfate with potent CYP450 3A4 inducers is considered contraindicated.
References (1)
- (2015) "Product Information. Cresemba (isavuconazonium)." Astellas Pharma US, Inc
Drug and food interactions
No alcohol/food interactions were found with the drugs in your list. However, this does not necessarily mean no food interactions exist. Always consult your healthcare provider.
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.
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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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