Answer
These medicines can greatly increase systemic corticosteroid exposure. Ritonavir is not recommended, and cobicistat combinations should generally be avoided unless specifically assessed and monitored.
Sources for this answer
- AVAMYS 27.5 micrograms/spray, nasal spray suspension — 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.