United States / USD Country & Currency
Country
United States
Currency
US Dollars
Save
Country
Australia
Gibraltar
Hong Kong
Malta
Northern Ireland
Puerto Rico
Scotland
Singapore
Switzerland
United Kingdom
United States
Currency
US Dollars
GB Pounds
AU Dollars
Euro
Explore our range Categories
Ask us a question 877-271-6591 or 800-868-9064

Shipping delays due to Covid-19 Virus

Please fill the form to receive updates when we can ship your order.

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.
Read more
5 Stars

Customer Review

Hear from more than 1000 happy customers!
Heart Icon
"Order received - thanks for excellent service!"
Fred MO, USA • January 2024
Heart Icon
"Thank you so very much. I appreciate all the help & responses that you've provided. Its not often that companies go that extra mile but you have & Im truly grateful for it."
Melissa Reiger GA, USA • July 2025
Heart Icon
"Thank you again so very much! I couldn’t wish for a better company to do business with. Many thanks!"
Suze Moon WA, USA • April 2025
Heart Icon
"Great Service for over a decade! Thank you, Inhouse Pharmacy!"
Lisa Button WA, USA • September 2025
Heart Icon
"Thank you for the reply. It sure is encouraging. It’s also pointing to a never fail. To years of me using In-house Pharmacy and for quality pharmaceuticals without a hitch. "
William WV, USA • January 2024
Heart Icon
"Thank you so much for your fine services. I received my package today in perfect condition. It is a pleasure to do business with you. "
Carol FL, USA • December 2023
Heart Icon
"Great service, never had a problem"
Kimberly NM, USA • August 2025
Heart Icon
"Hi, I just must stop and say thank you for all you girls have done over, the years. Your service is excellent! Always courteous and professional!"
David Koss PA, USA • July 2025
Heart Icon
"Thank you for your timely assistance in sending the replacement. I greatly appreciate your customer service."
Lenore OR, USA • January 2024
Heart Icon
"You guys are the best Bonnie, thank you."
Mike OK, USA • February 2024
 

This website uses cookies. View our policy and select your preferences here