Medication Information Leaflet
Antihistamines are a group of medications which can be used to relieve symptoms of allergic reactions. Antihistamine eye drops are used to treat symptoms of eye allergies (allergic conjunctivitis), such as red, itchy eyes and watery eyes. They may contain ingredients such as:
Apply this medication to the affected eye as recommended by your healthcare professional.
For proper use of eye drop:
For contact lens wearers:
Antihistamine eye drops may be used when required for a short period of time. This means that you do not have to use them if you do not have any symptoms. If you miss a dose, apply it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue normally. Do not apply two doses or extra medication to make up for the missed dose.
Inform your healthcare professional if:
These side effects are mild and will subside after some time. Do not drive or operate machinery immediately after using the eye drops.
If the discomfort continues for more than a few minutes, discontinue the medication, and rinse the affected eye with normal saline eye wash.
These side effects are usually mild and go away after some time. However, if the symptoms are bothersome, do not go away or become worse, stop these medications and consult your healthcare professional.
The symptoms of a drug allergy include one or more of the following:
Signs that your condition may require further medical attention include:
If you experience any of these symptoms, you should stop these medications and see your doctor immediately.
Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.
Eye drops should be discarded 4 weeks after first opening, unless stated otherwise by the manufacturer.
Pack these medications into a black trash bag and seal it tightly before throwing it into the rubbish chute or bin.
Please take note that the above is not a complete list of all possible side effects. If you have any concerns about your medication or if you have other side effects that you think are caused by this medication, please consult your doctor or pharmacist.
If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.
This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (National Healthcare Group, National University Health System and SingHealth), community pharmacies (Guardian, Unity and Watsons) and Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.
Last updated on October 2023
This article was last reviewed on Wednesday, January 20, 2021