I think azelastine is Rx only in the States.
Google AI:
Azelastine is available over the counter (OTC) in the United States in the form of the brand-name spray Astepro Allergy, which contains 0.15% azelastine hydrochloride and provides relief from nasal allergy symptoms for adults and children 6 years and older. A prescription is no longer needed for this non-steroid, antihistamine nasal spray, making it a first-of-its-kind OTC option in the U.S.
17 bucks n Amazon.