I think there is a prescription version but I just get mine right off the shelf.
https://www.walgreens.com/store/c/walgreens-24-hour-budesonide-nasal-spray/ID=prod6328689-product
https://www.cvs.com/shop/cvs-health-budesonide-nasal-spray-32mcg-120-dose-prodid-1170019
First came Xi, then faux-xi.
Suboptimal is a word Orwell somehow failed to invent, but I still prefer doubleplusungood. The whole COVID thing has been doubleplusungood.
We will always be at war with Eastasia, however, lacks the irony Orwell intended.