Choosing Generic Vs Branded Olopatadine Eye Drops


Generic medicines contain the same active ingredient and are equally effective and medically equivalent as the branded products but are available at a lower price. Generic manufacturers have to demonstrate that they are medically identical to the branded product - i.e. they offer the same quality, strength, stability and effectiveness.

Generic medicines are required meet the same standards of safety, quality and efficacy as the branded medication. To receive market approval from the European Medicines Agency and MHRA, a generic medicine must be 'bioequivalent' to the originator product.

Olopatadine Eye Drops

Allergy Eye drops

Out Of Stock
Get notified when it's back in stock
Thanks! We'll notify you when Olopatadine Eye Drops is back in stock
Sorry, we couldn't save your email address

Our Prices

Olopatadine Eye Drops

  • 1 x 5mls - £6.99


What is Olopatadine?

Olopatadine 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.

Olopatadine 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.

Using Olopatadine

How should I use Olopatadine?

One drop should be instilled into each eye, twice daily.

When can I expect to see results?

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.

Olopatadine Information

What is allergic conjunctivitis?

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.

What causes allergic conjunctivitis?

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.

What treatments are available for allergic conjunctivitis?

Allergic conjunctivitis can be treated with anti-allergy drops, like Sodium Cromoglicate or Olopatadine.

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.

Side Effects

What side effects may I experience?

Olopatadine 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.

Is there anybody who should not use Olopatadine?

It is not suitable for women that are pregnant or breastfeeding.

Information Leaflet

Patient Information Leaflet

Always read the patient information leaflet before commencing treatment.

Authored 02 April 2020 by Dr Clare Morrison, Reviewed 02 April 2020 by Liyya Patel, Siobhan Titre Last updated 02 April 2020

Discreet Service

Plain packaging

Option to collect from
your local Post Office™

local branches

How our service works

It’s quick, easy, and safe to order from MedExpress — your fully regulated, London, United Kingdom based online pharmacy.

Free online

Start a free 2 minutes online consultation with simple questions about your health.


Our UK medical team will then recommend a treatment and issue a free prescription.


Your treatment will be sent direct from our London pharmacy in discreet packaging.

Watch our video to find out more

Our qualified team

All our doctors and pharmacists are based in the UK and are registered with the General Medical Council and General Pharmaceutical Council.

Dr Clare Morrison

General Practitioner (Prescriber)
GMC: 3441561

Avnish Patel

GPhC: 2079950

Rukhsana Deshmukh

Superintendent Pharmacist
GPhC: 2070765