Azelastine

What is Azelastine?

Azelastine is an antihistamine that helps relieve symptoms of a nasal infection.

Bacteria and viruses are both common causes of nasal infections. In response to these infections, your body releases histamine, but this triggers symptoms like nasal congestion and a runny nose.

Azelastine works by blocking histamine receptors in your nose, which helps stop these symptoms from happening.

How does Azelastine work?

Azelastine is an antihistamine that binds to histamine receptors in your nose. Histamine is a chemical that’s released when your body detects an allergen like pollen or a foreign invader like bacteria. While histamines are part of your body’s defence system, they can also cause symptoms like nasal congestion and sneezing.

By binding to histamine receptors, Azelastine blocks histamine from attaching to them, alleviating nasal symptoms.^[1]

What doses of Azelastine are there?

Azelastine is only available in two strengths: 0.05% and 0.1%. Your doctor will typically prescribe the lower dose initially, but it can depend on the severity of your symptoms. Your doctor will give you more information on when and how to use it for your specific needs.

How to use Azelastine

Before using Azelastine, you’ll need to prime the bottle. To do this: 

• Gently shake the bottle
• Remove the cap
• Pump the bottle a few times until a fine mist is produced

To use Azelastine:

1. Blow your nose
2. Remove the cap
3. Spray one pump into each nostril while keeping your head upright
4. Wipe the nozzle clean and replace the cap

How long does Azelastine take to work?

It can take 15 to 30 minutes for Azelastine to take effect, and you should experience relief from your symptoms within 12 to 24 hours.

I sprayed too much Azelastine, now what?

If you accidentally use more than recommended, it’s unlikely to cause harmful side effects. But if you are concerned, reach out to your doctor for advice.