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Allergies Health Center

Antihistamines Directory

Anithistamines work by blocking histamine, which can cause allergy symptoms. Side effects of antihistamines may include dry mouth, drowsiness, and more. Follow the links below to find WebMD's comprehensive coverage about how antihistamines work, who should take them, and much more.

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Thumbnail: An Allergy-Free Vacation: It's Possible With Planning

Beaches and mountains are the best bet for allergy sufferers.

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