Answer
Cobicistat slows CYP3A-mediated breakdown of darunavir, increasing its exposure. It has no direct antiviral activity.
Sources for this answer
- REZOLSTA 800 mg/150 mg film coated tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.