Drug Interaction Report
1 potential interaction and/or warning found for the following 2 drugs:
- metreleptin
- ritlecitinib
Interactions between your drugs
metreleptin ritlecitinib
Applies to: metreleptin, ritlecitinib
MONITOR: Coadministration with CYP450 3A4 inducers may decrease the plasma concentration and pharmacologic effects of ritlecitinib. The proposed mechanism is increased clearance of ritlecitinib due to induction of the CYP450 3A4 isoenzyme, one of the pathways of elimination of ritlecitinib. When a single 50 mg dose of ritlecitinib was administered in combination with the potent CYP450 3A4 inducer rifampin (600 mg once daily for 8 days), the mean peak plasma concentration (Cmax) and systemic exposure (AUC) of ritlecitinib decreased by approximately 25% and 44%, respectively, compared to ritlecitinib administered alone. Data are not available of other, less potent inducers.
MANAGEMENT: Caution is advised when ritlecitinib is used with CYP450 3A4 inducers. The possibility of diminished therapeutic effects should be considered.
References (1)
- (2023) "Product Information. Litfulo (ritlecitinib)." Pfizer U.S. Pharmaceuticals Group
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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