Assertion: ritonavir | /r/HasSubevent | serious side effects
Facets:
Source sentences:
text: Ritonavir should not be used together with amiodarone (Cordarone), quinidine (Quinaglute, Cardioquin), triazolam (Halcion), midazolam (Versed), pimozide (Orap), ergot derivatives (for example, ergotamine, dihydroergotamine), alfuzosin (Uroxatral), propafenone (Rythmol) and flecainide (Tambocor) because ritonavir increases the blood levels of these drugs and may lead to serious side effects.