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Quick summary

Type of medicine

Hay Fever Symptom Reliever

Works by

Preventing histamine release in response to allergens, providing relief from hay fever symptoms.

Active Ingredient

Sodium Cromoglicate 2% w/v

Effective within

Provides relief within minutes to an hour after use.


No (Brand Name Product)

Side effects

Transient stinging or burning sensation in the nose, sneezing, nasal dryness or irritation

Medication details


Optrex Hay Fever Relief offers welcome respite for those who suffer from the seasonal torment of hay fever, also known as allergic rhinitis. This well-established solution is specially formulated to provide effective relief from the bothersome symptoms associated with hay fever, such as sneezing, runny nose, itchy or watery eyes, and nasal congestion.

Hay fever is a common allergic reaction to airborne pollen from grass, trees, and weeds. When pollen enters the nose, throat, or eyes of individuals with hay fever, it triggers the release of histamines, which lead to the classic symptoms of sneezing, congestion, and eye discomfort.

Optrex Hay Fever Relief contains an active ingredient called Sodium Cromoglicate, which is a mast cell stabilizer. This medication works by preventing mast cells in the body from releasing histamines in response to allergens like pollen. By reducing histamine release, it helps to control hay fever symptoms, providing much-needed relief to those affected by this seasonal allergy.


Shake Bottle: Before each use, shake the Optrex Hay Fever Relief bottle gently.
Prime Pump: If using the product for the first time or if it hasn't been used for some time, you may need to prime the pump. To do this, press the pump several times until you see a fine mist.
Tilt Head Forward: Tilt your head slightly forward.
Insert Nozzle: Carefully insert the nozzle of the pump into one nostril while closing the other nostril with your finger.
Spray: While gently breathing in through your nose, press the pump to release one spray into your nostril. Repeat this step for the other nostril.
Breathe Out: Breathe out through your mouth after spraying.
Clean Nozzle: After use, wipe the nozzle with a clean tissue and replace the protective cap.
Dosage: The usual dose is one or two sprays into each nostril 2-4 times a day. Always follow the recommended dosage on the product packaging or as advised by your healthcare professional.


Optrex Hay Fever Relief contains the following active ingredient:
Sodium Cromoglicate 2% w/v: A mast cell stabilizer that helps prevent the release of histamines in response to allergens.
Other inactive ingredients may include purified water, sodium chloride, and disodium edetate.

Side Effects

Optrex Hay Fever Relief is generally well-tolerated. However, like any medication, some individuals may experience side effects. Common side effects may include:
A transient stinging or burning sensation in the nose
Dryness or irritation of the nasal passages
If you experience severe or persistent side effects, discontinue use and consult with a healthcare professional or pharmacist.


Consult a Healthcare Professional: If your hay fever symptoms persist or worsen after using Optrex Hay Fever Relief, consult a healthcare professional or pharmacist for further evaluation.
Allergies: Avoid using this product if you are allergic to any of its ingredients listed on the product packaging.
Pregnancy and Nursing: If you are pregnant, nursing, or planning to become pregnant, consult with a healthcare professional before using this product.
Keep Out of Reach of Children: Store the product out of the reach of children. In case of accidental ingestion, seek medical assistance promptly.
Use with Caution: There is no specific information about interactions with alcohol. However, exercise caution if you consume alcohol and experience severe hay fever symptoms, as alcohol can exacerbate these symptoms.

Medically reviewed and published

  • This page was medically reviewed by Dr Sohaib Imtiaz, Clinical Lead on Oct 5, 2023, 2:30 pm

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Please read our FAQs page to find out more.

Can I use Optrex Hay Fever Relief for other allergies besides hay fever?

Optrex Hay Fever Relief is specifically designed to relieve symptoms associated with hay fever (allergic rhinitis) caused by pollen allergies. It may not be suitable for other types of allergies. Consult with a healthcare professional for guidance on treating different allergies.

How quickly does Optrex Hay Fever Relief provide relief from symptoms?

Optrex Hay Fever Relief typically provides relief from hay fever symptoms within minutes to an hour of use. However, individual responses may vary, and the exact time to relief can depend on factors such as the severity of symptoms and individual sensitivity.

Can I use Optrex Hay Fever Relief alongside other hay fever medications or antihistamines?

Optrex Hay Fever Relief contains Sodium Cromoglicate, which works differently from antihistamines. While it's generally safe to use alongside other hay fever treatments, it's advisable to consult with a healthcare professional or pharmacist to ensure compatibility and appropriate dosage.

Is it safe for children to use Optrex Hay Fever Relief?

Optrex Hay Fever Relief is suitable for adults and children over the age of six. However, for children aged six to 12, it's recommended to use one spray into each nostril twice a day. Always follow the recommended dosage for the specific age group and consult with a healthcare professional if needed.

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