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

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 ...

Other OTC options include the antihistamine nasal spray azelastine (Astepro) and eye drops such as ketotifen (Alaway) and olopatadine (Pataday). Some medications combine an antihistamine and a ...