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Liquid drops could replace allergy shots
March 27th, 2013
11:33 AM ET

Liquid drops could replace allergy shots

In Europe, some allergy sufferers are given sublingual immunotherapy, or allergy drops, to treat their symptoms. These tiny drops of purified allergens - such as pollen or dust mites - are placed under the tongue as an alternative to weekly allergy shots. The drops work like a vaccine, slowly increasing the body's tolerance to the allergen.

The Food and Drug Administration has yet not approved these drops for use in the United States, but new evidence published this week by the Journal of the American Medical Association could pave the way for American pharmaceutical companies.

"There is a tremendous interest in this treatment," said Dr. Clifford Bassett, medical director of Allergy and Asthma Care of New York. "As such there have been and are currently clinical trials underway by various companies looking to try to get an approval and come to the U.S. market in the years ahead."

Dr. Sandra Lin from the Johns Hopkins University School of Medicine and her colleagues reviewed 63 studies to analyze the effectiveness of allergy drops.
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