Asthma Medication Approved for New Use: Huge News for Those with Food Allergies

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A medication used to treat asthma can now be used to help people with food allergies avoid severe reactions, the U.S. Food and Drug Administration said Friday.

Xolair, the brand name for the drug omalizumab, became the first medication approved to reduce allergic reactions caused by accidental exposure to food triggers. Patients as young as age 1 with allergies can take the drug by injection every two to four weeks, depending on their weight and their body’s response to allergens.

An estimated 17 million people in the U.S. have the type of food allergies that can cause rapid, serious symptoms, including severe, whole-body reactions that are potentially deadly.

People who use Xolair must continue to avoid the foods that cause them reactions, such as peanuts, cashews, hazelnuts, walnuts, milk products and eggs. The medication allows them to tolerate higher amounts of such foods without causing major reactions.

Many people with allergies — and their families — live with constant anxiety about exposure to allergens and often avoid dining out and other social situations.

“To have this protection is going to be life-changing,” said Dr. Robert Wood, director of the pediatric allergy division at Johns Hopkins Children’s Center.

The FDA decision is based on a study led by Wood and funded by the National Institutes of Health. It showed that Xolair allowed about 68 percent of participants with peanut allergies to tolerate about 600 milligrams, or about 1/2 teaspoon, of peanut protein, compared with about 6 percent of those who received dummy injections.

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