Drug Interaction Report
1 potential interaction and/or warning found for the following 2 drugs:
- Harvoni (ledipasvir / sofosbuvir)
- rifaximin
Interactions between your drugs
rifAXIMin ledipasvir
Applies to: rifaximin, Harvoni (ledipasvir / sofosbuvir)
MONITOR: Coadministration with ledipasvir may increase the plasma concentrations of orally administered drugs that are substrates of the P-glycoprotein (P-gp) and/or breast cancer resistance protein (BCRP) transporters. The proposed mechanism is decreased clearance in the intestine due to inhibition of P-gp or BCRP-mediated drug efflux by ledipasvir.
MANAGEMENT: Caution is advised if ledipasvir must be used concurrently with medications that are substrates of the P-gp and/or BCRP transporters, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever ledipasvir is added to or withdrawn from therapy.
References (1)
- (2014) "Product Information. Harvoni (ledipasvir-sofosbuvir)." Gilead Sciences
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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