A panel of experts is meeting at the Food and Drug Administration today and is expected to decide whether to recommend full F.D.A. approval for allergy tablets that would be dissolved under the tongue.
Two companies are seeking F.D.A. approval for tablets to treat people with grass and pollen allergies.
Tablets may allow patients to treat themselves at home.
But that luxury concerns some allergists.
"What happens if they take too much? Since oral immunotherapy and shot immunotherapy runs the risk of allergic reactions, we could worry about with patients in their own homes," said immunologist Dr. Neeta Ogden.
Another advantage to shots is they can be tailored to each patient.
Liquid drops and tablets would be standardized.
An alternative to shots may be especially welcome news for young allergy sufferers often fearful of needles.
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