Paxlovid Drug-Drug Interactions Before prescribing ritonavir-boosted nirmatrelvir (Paxlovid) for outpatient treatment of COVID-19, determine whether the patient is receiving any of the medications listed. https://files.covid19treatmentguide #Paxlovid #nirmatrelvir #Drug #Interactions #DDI #pharmacology #COVID19 #SARSCOV2 #COVID #outpatient #contraindications