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Relief from symptoms will usually occur within 24 hours. If more than 72 hours have passed without symptom relief then an alternative diagnosis should be considered.
For best results, the drops should be used every day through your hay fever season. It is safe to use the drops for up to 4 months at a time without a break.
Allergic conjunctivitis is typically triggered by exposure to pollen from trees and flowers, or animal hair and pet dander. These allergens trigger cells within our immune system (mast cells) to release histamine, which leads to irritation.
Allergic conjunctivitis can be treated with anti-allergy drops, like Sodium Cromoglicate or Opatanol.
If you experience additional hay fever or allergy symptoms, such as an itchy throat or runny nose, antihistamine tablets can provide extra relief alongside eye drops.
Opatanol is a prescription-only eye drop used to treat allergic conjunctivitis (hay fever) by reducing the redness, itch, watering and irritation of the eyes associated with the condition.
Opatanol works by stabilising the mast cells that release histamine. It’s similar to Sodium Cromoglicate, but can be used less frequently (twice daily) as it provides more sustained relief of symptoms.
One drop should be instilled into each eye, twice daily.
Allergic conjunctivitis is the name given to eye inflammation caused by allergies, such as hay fever.
This inflammation causes itching, redness and watering. It can also lead to eye discharge, or inflamed, itchy eyelids.
Opatanol is well tolerated and side effects are not common. It can cause a feeling of dry eyes and irritation. Very rarely, it can cause an allergic reaction — if you experience this, you should avoid these drops in the future.
It is not suitable for women that are pregnant or breastfeeding.
Always read the patient information leaflet before commencing treatment.
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No GP or pharmacy visits, just a quick online consultation.
No GP or pharmacy visits, just a quick online consultation. Share your symptoms and a brief medical history in around two minutes, all from the comfort of your home.

Select from our recommended UK-licensed medications.
Select from our recommended UK-licensed medications. You don’t need an existing prescription.

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