Wirkstoffe & Arzneimittelsicherheit

Wechselwirkungen · Instanyl

Instanyl 50 micrograms nasal spray, solution in single-dose container Instanyl 100 micrograms nasal spray, solution in single-dose container Instanyl 200 micrograms nasal spray, solution in single-dose container · Abschnitt 4.5 · PDF-Seite 20

HOS-120583 · Präparat HOS-095157

Fentanyl is metabolised mainly via the human cytochrome P450 3A4 isoenzyme system (CYP3A4), therefore potential interactions may occur when Instanyl is given concurrently with medicinal products that affect CYP3A4 activity. Coadministration with medicinal products that induce 3A4 activity may reduce the efficacy of Instanyl. The concomitant use of Instanyl with strong CYP3A4 inhibitors (e.g. ritonavir, ketoconazole, itraconazole, troleandomycin, clarithromycin, and nelfinavir) or moderate CYP3A4 inhibitors (e.g., amprenavir, aprepitant, diltiazem, erythromycin, fluconazole, fosamprenavir, and verapamil) may result in increased fentanyl plasma concentrations, potentially causing serious adverse drug reactions including fatal respiratory depression. Patients receiving Instanyl concomitantly with moderate or strong CYP3A4 inhibitors should be carefully monitored for an extended period of time. Dose increase should be done with caution.

Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.

RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): diltiazem (HOS-086288) nelfinavir (HOS-084520) ketoconazole (HOS-084513) aprepitant (HOS-112506) itraconazole (HOS-084516) fluconazole (HOS-087945) clarithromycin (HOS-084517) erythromycin (HOS-084514) amprenavir (HOS-086183) troleandomycin (HOS-090575) fosamprenavir (HOS-086182) ritonavir (HOS-084521) verapamil (HOS-090602)