Drug Interaction Report
3 potential interactions and/or warnings found for the following 2 drugs:
- Paxlovid (nirmatrelvir / ritonavir)
- terfenadine
Interactions between your drugs
terfenadine ritonavir
Applies to: terfenadine, Paxlovid (nirmatrelvir / ritonavir)
Astemizole and terfenadine are no longer on the market in the US. Do not take astemizole or terfenadine with any other medication.
Drug and food interactions
terfenadine food
Applies to: terfenadine
Terfenadine is no longer on the market in the US. Do not take terfenadine with any other food or medication.
ritonavir food
Applies to: Paxlovid (nirmatrelvir / ritonavir)
Ritonavir should be taken with food to lessen gastrointestinal side effects. It is important that you take this medication exactly as prescribed by your doctor. Do not change your treatment or stop treatment without first talking to your doctor.
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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