Drug Interaction Report
1 potential interaction and/or warning found for the following 2 drugs:
- valdecoxib
- Viramune XR (nevirapine)
Interactions between your drugs
nevirapine valdecoxib
Applies to: Viramune XR (nevirapine), valdecoxib
MONITOR: Coadministration with nevirapine may decrease the plasma concentrations and therapeutic efficacy of drugs that are substrates of CYP450 3A4. The proposed mechanism is increased clearance due to nevirapine-mediated induction of CYP450 3A4.
MANAGEMENT: Caution is advised if nevirapine is used concomitantly with drugs that are CYP450 3A4 substrates. Dosage adjustments as well as clinical and laboratory monitoring of coadministered drugs should be considered whenever nevirapine is added to or withdrawn from therapy.
References (4)
- (2001) "Product Information. Viramune (nevirapine)." Boehringer-Ingelheim
- Cerner Multum, Inc. "UK Summary of Product Characteristics."
- Cerner Multum, Inc. "Australian Product Information."
- (2017) "Product Information. Viramune XR (nevirapine)." Boehringer Ingelheim
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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