Optrex Allergy 2% w/v Eye Drops are a pharmacy medicine used to treat and prevent allergic conjunctivitis (red, itchy, watery, and inflamed eyes) caused by seasonal allergies like hay fever or perennial allergies like dust mites and pet dander.
The active ingredient is sodium cromoglicate (2% w/v). It is a mast cell stabilizer that works by stopping the release of natural inflammatory chemicals, like histamine, that trigger allergic reactions.
Proper Usage & Dosage
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Standard Dose: Instill 1 to 2 drops into each affected eye 4 times daily (can be increased up to 6 times daily if directed by a doctor).
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Age Guidance: Typically suitable for adults and children aged 6 years and older.
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Preventative Use: For optimal results, you can start using these drops before your allergy symptoms fully emerge to stop the reaction from developing.
Crucial Safety Warnings & Precautions
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Contact Lenses: Do not wear soft contact lenses while using this medication. The drops contain benzalkonium chloride, a preservative that can discolor soft lenses and cause eye irritation. Remove lenses before applying, and wait at least 15 minutes before putting them back in.
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Expiry After Opening: Throw the bottle away 4 weeks (28 days) after opening, even if there is liquid left, to avoid bacterial contamination.
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Pregnancy & Breastfeeding: Consult your doctor or pharmacist before using these drops if you are pregnant or breastfeeding.
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Temporary Vision Blur: The drops may cause a brief stinging sensation or temporary blurred vision immediately after application. Avoid driving or operating machinery until your vision clears.
How to Apply Step-by-Step
- Wash your hands thoroughly.
- Tilt your head back and gently pull down your lower eyelid to create a small pocket.
- Hold the bottle upside down above the eye, bringing the dropper tip close but without touching the eye, eyelid, or fingers (to prevent contamination).
- Gently squeeze 1 or 2 drops into the pocket.
- Close your eye for a few seconds to let the medicine spread across the eye surface. Wipe away any excess liquid with a clean tissue.
Seek medical advice if your symptoms worsen or do not show improvement after 2 days.
