Azelastine is an anti-allergy eye drop used to relieve the symptoms of seasonal allergic conjunctivitis.
| Drug class | Dual-Action (Antihistamine + Mast Cell Stabiliser) |
|---|---|
| Type | Single |
| Forms | Eye Drop |
| Common strength | 0.05% |
| Common Indian brands | Azelast |
| Prescription status | Prescription |
What Azelastine is used for
Azelastine eye drops are prescribed to help manage and relieve the symptoms of certain eye conditions. Specifically, it is used for:
- Seasonal allergic conjunctivitis
Seasonal allergic conjunctivitis is a common eye allergy that occurs when your eyes come into contact with allergens like pollen, dust mites, or pet dander, especially during certain times of the year. This can lead to uncomfortable symptoms such as itching, redness, watering, and swelling of the eyes.
How it works
Azelastine is a dual-action medicine that works in two important ways to provide relief from eye allergies:
- Antihistamine Action: When you have an allergic reaction, your body releases a substance called histamine. Histamine is responsible for many allergy symptoms like itching and redness. Azelastine acts as a fast-acting antihistamine, blocking the effects of histamine and quickly reducing these uncomfortable symptoms.
- Mast Cell Stabiliser Action: Mast cells are special cells in your body that store and release histamine and other chemicals during an allergic reaction. Azelastine helps to stabilise these mast cells, preventing them from releasing these allergy-causing substances. This helps to reduce the overall allergic response and provides longer-lasting relief.
By combining these two actions, Azelastine helps to both quickly relieve existing allergy symptoms and prevent new ones from developing.
How it’s used
Azelastine eye drops are for ophthalmic use only, meaning they are to be used in the eyes. Always follow your ophthalmologist’s instructions carefully when using this medicine. The typical dosing pattern is:
- Instil 1 drop into the affected eye(s) twice a day.
It is important to maintain consistency with your dosing schedule to get the best results from the medicine. Do not use more or less than prescribed, and do not stop using the drops without consulting your doctor, even if your symptoms improve.
Always follow your ophthalmologist’s exact instructions.
Brands available in India
- Azelast
Brand availability and pricing vary; confirm with your pharmacist.
Good to know
Prescription eye medicine — use only as directed by a qualified ophthalmologist. This page is for general education and is not a substitute for professional medical advice, diagnosis or a prescription. Do not self-medicate or reuse an old prescription.
Precautions & side effects
While Azelastine eye drops are generally well-tolerated, it’s important to be aware of certain precautions and potential effects:
- Some patients may experience a temporary bitter taste in their mouth after instilling the eye drops. This is usually mild and resolves on its own.
Always inform your ophthalmologist about any other medicines you are taking, including over-the-counter drugs, supplements, or herbal remedies, to avoid potential interactions. If you experience any unusual or severe side effects, contact your doctor immediately.
Understanding Seasonal Allergic Conjunctivitis
Seasonal allergic conjunctivitis, often simply called eye allergy, is a very common condition in India, especially during certain seasons when pollen counts are high, or when you are exposed to common allergens like dust mites, pet dander, or mould spores. It happens when your eyes react to these harmless substances as if they are a threat. This reaction causes your body to release chemicals, including histamine, which lead to the uncomfortable symptoms you experience.
Typical symptoms of seasonal allergic conjunctivitis include:
- Itchy eyes: This is often the most prominent and bothersome symptom.
- Redness: The white part of your eyes (sclera) may appear red or bloodshot.
- Watery eyes: Your eyes might produce excessive tears.
- Swelling: The eyelids or the conjunctiva (the clear membrane covering the white part of your eye and lining the inside of your eyelids) may become swollen.
- Burning sensation: Some people describe a burning or gritty feeling in their eyes.
While these symptoms can be very irritating and affect your daily life, they are usually not serious and do not typically cause long-term damage to your vision. However, it’s important to get a proper diagnosis from an ophthalmologist to ensure your symptoms are indeed due to allergies and not another eye condition that might require different treatment.
Correct Way to Use Eye Drops
Using eye drops correctly is crucial for them to work effectively and to prevent contamination. Follow these steps carefully:
- Wash Your Hands: Always wash your hands thoroughly with soap and water before touching your eyes or the eye drop bottle.
- Check the Bottle: Ensure the bottle tip is clean and not damaged. Do not let the tip touch any surface, including your eye, eyelid, or fingers, to prevent contamination.
- Tilt Your Head Back: Gently pull down your lower eyelid with one finger to create a small pocket.
- Instil the Drop: Hold the bottle upside down with your other hand, positioning the tip directly over your eye. Look upwards and gently squeeze the bottle to release one drop into the pocket you created.
- Close Your Eye: Gently close your eye for a minute or two. Do not blink excessively or squeeze your eye shut, as this can push the medicine out.
- Apply Pressure (Optional): You can gently press your finger against the inner corner of your eye (near your nose) for about a minute. This helps prevent the medicine from draining into your tear duct and potentially causing a bitter taste.
- Wipe Excess: Gently blot any excess liquid around your eye with a clean tissue.
- Wash Hands Again: Wash your hands again after instilling the drops.
If you need to use more than one type of eye drop, wait at least 5-10 minutes between different medicines to allow each drop to be absorbed properly.
General Hygiene, Storage, and When to Seek Help
Maintaining good hygiene is vital when using eye medicines. Always use a fresh, unopened bottle for each course of treatment, if advised by your doctor. Never share your eye drops with anyone else, as this can spread infections. Once opened, eye drops typically have a limited shelf life (often 28 days), even if there is medicine remaining. Check the expiry date on the bottle and discard any unused medicine after the recommended period or if the solution changes colour or becomes cloudy.
Store your Azelastine eye drops at room temperature, away from direct sunlight and excessive heat, as instructed on the packaging. Keep all medicines out of the reach of children.
It’s important to know when to contact your ophthalmologist. While Azelastine is effective for allergic conjunctivitis, certain symptoms might indicate a different or more serious problem. You should seek immediate medical attention if you experience:
- Sudden, severe eye pain.
- Significant vision changes or loss of vision.
- Increased sensitivity to light (photophobia).
- Pus or thick discharge from your eye.
- A foreign body sensation that doesn’t go away.
- Symptoms that worsen or do not improve after a few days of using the medicine as prescribed.
- Any new or unusual symptoms.
Remember, this page provides general information and is not a substitute for professional medical advice. Always follow the specific instructions and advice given by your qualified ophthalmologist for your eye health.
Frequently asked questions
What is Azelastine used for?
Azelastine eye drops are used to treat the symptoms of seasonal allergic conjunctivitis, which is a common eye allergy that causes itching, redness, and watering of the eyes.
How does Azelastine work?
Azelastine works in two ways: it acts as a fast-acting antihistamine to quickly relieve allergy symptoms like itching and redness, and it also stabilises mast cells, preventing them from releasing chemicals that cause allergic reactions.
What are the common Indian brands for Azelastine eye drops?
In India, Azelastine eye drops are available under the brand name Azelast.
How should I use Azelastine eye drops?
The typical dose is 1 drop into the affected eye(s) twice a day. Always follow your ophthalmologist's specific instructions for use.
Do I need a prescription for Azelastine eye drops?
Yes, Azelastine is a prescription eye medicine. You should only use it as directed by a qualified ophthalmologist.
Are there any precautions I should be aware of when using Azelastine?
Some patients may notice a temporary bitter taste after instilling the eye drops. Always use the medicine only as directed by your ophthalmologist and report any unusual or severe side effects.
References
- Azelastine Ophthalmic: MedlinePlus Drug Information
- Azelastine hydrochloride, a dual-acting anti-inflammatory ophthalmic solution, for treatment of allergic conjunctivitis – PMC
- Eye Allergies – American Academy of Ophthalmology
- Learn about eye health – National Eye Institute (NIH)
- Blindness and vision impairment – World Health Organization
Medically reviewed by Dr. C Jagadesh Reddy, Chief Surgeon: Cornea, Cataract and Refractive Surgery — last reviewed 2026-07-28.
This page is for general education only and is not a substitute for professional medical advice, diagnosis or treatment. Never self-medicate or reuse an old prescription. Always consult a qualified ophthalmologist before starting, changing or stopping any eye medicine.