Extracts of allergens, or purified allergens that have been chemically modified to reduce their ability to induce IGE-MEDIATED HYPERSENSITIVITY (allergenicity) while increasing their ability to induce IMMUNE TOLERANCE.

Synonyms: Allergoid, Formalinized, 0, Allergoid, Allergoids, Formalized Allergoid, Allergoid, Formalized, Formalinized Allergoid, HMW-GOID, High Molecular Weight Allergoid, HMW GOID