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Antihistamines / Allergy

Our antihistamines/allergy class of eye medications are used to treat allergic eye condition like conjunctivitis caused by seasonal allergies like hay fever or perennial allergies like allergy to animal dander, to relieve symptoms.

Use the search feature to quickly find the product you are looking for, by entering either the active ingredient, e.g. olopatadine or the product name, e.g. Patanol

Allergic conjunctivitis

Allergic conjunctivitis is inflammation of the conjunctiva, which is the inner lining of the eyelids and sclera of the eye (white part of the eye). It is caused by an allergic reaction to allergens such as pollen, animal dander or house dust mites with symptoms including swollen red eyes, itching and eye watering.

Antihistamine eye drops

Eye drops containing the antihistamine olopatadine, can be used to relieve symptoms of allergic conjunctivitis. Olopatadine works by binding to the H1 receptor on the conjunctival cells in the eye and this blocks the action of histamine, which is released by mast cells during an allergic reaction and is responsible for most of the symptoms of allergic conjunctivitis.
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Customer Review

Hear from more than 1000 happy customers!
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"Excellent service. Will use again."
Kim FL, USA • October 2021
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"This is the best pharmacy I've ever used; many thanks and you have a long term customer!"
David MA, USA • February 2020
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""Thank you very much for your caring email and please know how grateful I am for all the years of wonderful service that you and your team have provided. You have given me the assistance needed to maintain my health and to continue to successfully provide for my widowed mum's needs. That is a great grace and I thank you with the utmost sincerity. I hope that you all have a happy and healthy end of 2020 and a great New Year and thank you again for everything." "
Anthony MA, USA • February 2021
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"I have used In-House a handful of times and I have never been disappointed. Great customer service and fast delivery. Only company I will buy online from when it comes to pharmaceuticals."
Stephanie MI, USA • October 2021
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"I’ve been ordering regularly from Inhouse Pharmacy for two years: they are one of the most reliable, efficient, well organized companies I’ve ever done business with. Everything goes like clockwork — never had even one thing go wrong, and the mailing to US keeps getting faster! I appreciate them and recommend highly"
George NY, USA • February 2020
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D. TX, USA • February 2020
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Fred MO, USA • February 2024
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Susan RI, USA • October 2020
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Shawna GA, USA • February 2020
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"Easy repeat orders."
Joseph NY, USA • October 2020
 

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