Azelastine
Azelastine is an antihistamine available in nasal and eye formulations for selected allergy symptoms. These products act at different sites and are not interchangeable.
Key points
- Nasal azelastine treats selected rhinitis symptoms; eye drops treat selected allergic eye symptoms.
- Nasal products can cause drowsiness or a bitter taste, so driving and alcohol effects need consideration.
- Eye pain, visual loss or breathing difficulty is not routine allergy and needs urgent care.
Listings are for comparison and general information; suitability depends on symptoms, formulation and clinician or pharmacy checks where required.
Important safety checks
Check the exact route, age limits, contact-lens instructions and other sedating medicines. Persistent one-sided nasal symptoms, fever, eye discharge or pain may have another cause.
When to seek urgent care
Seek urgent help for breathing difficulty, throat swelling, fainting, severe eye pain, sudden vision change or an eye injury. Do not rely on antihistamines for anaphylaxis.

