Optilast Eye Drops 8ml
  • Optilast Eye Drops 8ml Thumbnail

Optilast Eye Drops 8ml

From £12.95

Medication features

  • Only be applied to the eyes
  • Effective relief for allergic conjunctivitis

NOTE: After selecting this product, you will need to complete a short assessment, so we can make sure this medication is suitable for you.


Buy Optilast Eye Drops 8ml Online

Optilast contains the active substance azelastine hydrochloride, which belongs to a group of medicines called
antiallergics (antihistamines). Antihistamines work by preventing the effects of substances such as histamine that the body produces as part of an allergic reaction. Azelastine has been shown to reduce inflammation of the eye.

Optilast can be used to treat and prevent eye disorders which you get with hayfever (seasonal allergic conjunctivitis) in adults and children aged 4 years and above.

Optilast can be used for eye disorders caused by an allergy to substances such as house dust mites or animal hair (perennial allergic conjunctivitis) in adults and children aged 12 years and above.


  • What is hay fever?

    Hay fever is a common allergy which is triggered by an allergic reaction to pollen. This allergy is most commonly encountered during pollen season, which is generally in the spring and summer months.

  • How do I cure Hay Fever?

    Unfortunately, there is no known cure for hay fever. The current approach to treating the allergy is by managing the symptoms it produces via medications such as anti-histamine tablets.

  • When is hay fever season?

    Hay fever season usually runs between late March to September. However there are different types of pollen released over these months, and you may not be allergic to all of them.

    You can check the latest pollen forecasts from the UK met office here.

  • How do I treat hay fever?

    The most common approach to treat hay fever is by taking an anti-histamine tablet such as Cetirizine or Loratadine. You can also use eye drops such as Optilast or nasal sprays such as Beconase or Avamys.

Side Effects

Side Effects of Optilast

Like all medicines, this medicine can cause side effects, although not everybody gets them.

These effects include:

  • Common (may affect up to 1 in 10 people): Slight irritation (burning, itching, watering) in the eyes after putting in Optilast. This should not last long.
  • Uncommon (may affect up to 1 in 100 people): A bitter taste in your mouth. This should quickly disappear especially if you have a soft drink.
  • Very rare (may affect up to 1 in 10000 people): An allergic reaction (such as rash and itching).

Info Leaflet

Before taking any medication, it is important to read the Patient Information Leaflet. You can find information leaflets for your medicines by typing them into the search bar at medicines.org, or by contacting us.


Always use this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure. Optilast should only be applied to the eyes.

The recommended dose is:

Eye disorders caused by hayfever (seasonal allergic conjunctivitis)

  • Use in adults and children aged 4 years and above
  • The usual dose is one drop in each eye in the morning and evening.

If you anticipate contact with pollen, the usual dose of Optilast may be taken as a preventive measure before going outside.

Eye disorders caused by an allergy (non-seasonal (perennial) allergic conjunctivitis)

  • Use in adults and children aged 12 years and above
  • The usual dose is one drop in each eye in the morning and evening.

If your symptoms are severe, your doctor may increase your dose to one drop in each eye, up to four times a day. Relief of symptoms of allergic conjunctivitis should be noticed after 15-30 minutes. 

Putting in your Optilast eye drops
To help you put in your eye drops correctly, you may find it useful to sit in front of a mirror so you can see what you are doing for the first few times.

  1. Wash your hands.
  2. Gently wipe around your eyes with a tissue to remove any moisture.
  3. Unscrew the top of the bottle and check that the dropper is clean.
  4. Gently pull your lower eyelid down.
  5. Carefully place the drop inside the middle of your lower eyelid. Take care not to let the dropper touch your eye.
  6. Release your lower eyelid and gently press on the inner corner of your eye against the bridge of your nose. Keeping your finger pressed against your nose, slowly blink your eyes a few times to spread the drop across the surface of your eye.
  7. Blot away any excess medicine with a tissue.
  8. Repeat this for your other eye.


Do not use Optilast:

  • if you are allergic to azelastine hydrochloride or any of the other ingredients of this medicine.

Warnings and precautions

Talk to your doctor or pharmacist before using Optilast

  • if you are not sure whether your eye disorders are caused by an allergy. In particular, if only one eye is affected; if your vision is impaired; or the eye hurts and you do not have any symptoms in your nose, you may have an infection rather than an allergy
  • if the complaints worsen or last longer than 48 hours without remarkable improvement despite the use of Optilast.
  • if you wear contact lenses.

Children and adolescents
For the treatment of eye disorders caused by hayfever (seasonal allergic conjunctivitis):
Do not give this medicine to children below 4 years of age, because safety and efficacy have not been established.

For the treatment of eye disorders caused by an allergy (non-seasonal (perennial) allergic conjunctivitis): Do not give this medicine to children below 12 years of age, because safety and efficacy have not been established.

Other medicines and Optilast
Although Optilast is not known to be affected by other medicines, tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.

Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

Driving and using machines
Your sight may become blurred for a short time after you use Optilast. If this happens, wait until your sight clears before you drive or use machinery.

Optilast contains benzalkonium chloride
This medicine contains 0.00375 mg benzalkonium chloride in each drop which is equivalent to 0.00375 mg/0.03 ml. Benzalkonium chloride may be absorbed by soft contact lenses and may change the colour of the contact lenses. You should remove contact lenses before using this medicine and put them back 15 minutes afterwards. Benzalkonium chloride may also cause eye irritation, especially if you have dry eyes or disorders of the cornea (the clear layer at the front of the eye). If you feel abnormal eye sensation, stinging or pain in the eye after using this medicine, talk to your doctor.


The active substance is azelastine hydrochloride 0.05% (0.5 mg/ml). Each drop contains 0.015 mg azelastine
The other ingredients are benzalkonium chloride, disodium edetate, hypromellose, liquid sorbitol (crystallising) (E420i), sodium hydroxide (E524) and water for injections.

Order within for guaranteed next day delivery options

From £12.95
Compare Prices
The variation selected is currently out of stock.
Item added to bag. Click here to view bag.
Please select a size from above to proceed.
There are NHS prescriptions in your basket. Please complete the order first or remove NHS prescriptions from the basket.

Telfast 120mg

Medication Simple Online Pharmacy
120mg x30 £11.95
Order now
120mg x60 £18.45
Order now
120mg x90 £24.95
Order now

Beconase Aqueous Nasal Spray

Medication Simple Online Pharmacy
200ug x1 Spray £5.95
Order now
200ug x2 Sprays £9.95
Order now
200ug x3 Sprays £12.45
Order now

Avamys Nasal Spray

Medication Simple Online Pharmacy
27.5ug / Dose x1 Nasal Spray £12.95
Order now
27.5ug / Dose x2 Nasal Sprays £18.95
Order now
27.5ug / Dose x3 Nasal Sprays £28.45
Order now

Rhinolast nasal spray

Medication Simple Online Pharmacy
140ug x1 Spray £19.95
Order now
140ug x2 Sprays £34.95
Order now
140ug x3 Sprays £49.95
Order now

Dymista Nasal Spray

Medication Simple Online Pharmacy
Dymista Nasal Spray x 1 £22.50
Order now
Dymista Nasal Spray x 2 £39.95
Order now

Rapitil Eye Drops

Medication Simple Online Pharmacy
5ml £9.50
Order now

Optilast Eye Drops 8ml

Medication Simple Online Pharmacy
0.5mg/ml x1 Bottle £12.95
Order now
0.5mg/ml x2 Bottles £19.85
Order now