If all goes well, in 2013 there will be a pill a patient can take rather than allergy shots to tone down the immune response to not only grasses ( Grazax ), but also ragweed. The active ingredient in this ragweed pill is Ambrosia artemisifolia, the chemical found within ragweed that causes allergy symptoms. Phase III trials with this pill taken once/day for 52 weeks conducted by Merck show a significant improvement in allergy symptoms by nearly 25%. Use of allergy medications like anti-h…
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