Will any medications affect the Food Allergy Test results?

There are no medication or supplement restrictions prior to collecting your blood sample.

  • Allergy medications (antihistamines) are intended to stop histamine, not IgE antibodies. Histamine is a chemical released in your body when you’re exposed  to an allergen. This test measures IgE antibodies, so taking an antihistamine allergy medication will not affect your test results. 
  • PALFORZIA immunotherapy for known IgE peanut allergies is currently the only FDA approved food allergy immunotherapy. Studies have shown changes in peanut IgE levels related to the therapy. Initially IgE levels have been shown to rise, but after prolonged immunotherapy over time, peanut IgE levels show decreases in these patients.

It’s important to talk to your healthcare provider if you have questions about medications or immunotherapy/allergy shots impacting this test. Do not stop taking any of these without talking to your healthcare provider first. For more information about our testing options, including the Indoor & Outdoor Allergy Test, Food Allergy Test, and Food Sensitivity Test, please click on the respective links.