is claritin an antihistamine

Why No Antihistamine Before Surgery: Understanding the Risks and Precautions

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Antihistamines are a group of medications or drugs that can counteract the actions of histamine by blocking its receptors. Therefore, they are administered to patients experiencing allergic reactions or other disorders involving histamine. It produces symptoms such as a runny nose, itchy eyes, hives, and dizziness.

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The Comprehensive Guide to Antihistamine Eye Drops

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Antihistamine eye drops are prescribed for itchy, red, and swollen eyes, brought on by allergies. Such irritation occurs because the immune system responds to usual allergens, such as pollen, house dust, or even the dander of particular pets, through a process called histamine release, lots of it. Antihistamine eye drops act by blocking off the histamines, and the relief from such discomfort comes around.

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