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Contrast dye allergy



 If someone is allergic to fish/shell fish, is a contrast dye procedure feasible? Thank you


The cross reactivity between the contrast material used to day for radiographic procedures does not cross react with shellfish.  This is a misnomer that has been perpetuated for years.

Studies have shown that this is not a significant risk for a reaction.  However, many physicians may elect to prophylactically treat with antihistamines and/or corticosteroids to protect against medical legal issues since the belief that contrast material and shellfish is imprinted in the general publics mind.

For more information:

Go to the Allergies health topic, where you can:

Response by:

Jonathan   Bernstein, MD Jonathan Bernstein, MD
Associate Professor of Medicine
College of Medicine
University of Cincinnati