Azelastine HCl 137mcg/spray; aqueous nasal spray; contains benzalkonium chloride. Avoid engaging in hazardous occupations requiring complete mental alertness such as driving or operating machinery ...

While Astepro Allergy can be purchased over-the-counter, GoodRx Health notes that the generic version of the drug -- ...

This type of nasal spray is available over-the-counter (OTC) and as a prescription. Types of nasal antihistamine sprays include azelastine (brand names include Astepro and Astelin) and olopatadine ...

For patients with allergic rhinitis, twice-daily azelastine plus fluticasone cut nasal symptoms ... all treatments were administered as one spray twice daily to preserve blinding.