Prikbladet perikum (Hypericum perforatum) Serumniveauet for amprenavir kan reduceres ved samtidig anvendelse af naturprodukter indeholdende prikbladet perikum (Hypericum perforatum).
St John’ s wort (Hypericum perforatum) Serum levels of amprenavir and ritonavir can be reduced by concomitant use of the herbal preparation St John’ s wort (Hypericum perforatum).