Standardized allergenic extract, cat hair

Standardized Cat Hair Allergenic Extract is a sterile solution containing allergens derived from the hair of the domestic cat (Felis catus). The primary active component is Fel d 1, the major cat allergen. The product is used for both diagnostic skin testing and subcutaneous immunotherapy in patients with a history of allergy to cats. It works by inducing immune tolerance to specific allergens through controlled exposure, thereby reducing allergic symptoms such as asthma, rhinitis, and conjunctivitis upon subsequent natural exposure. The potency of the extract is measured in Bioequivalent Allergy Units per milliliter (BAU/mL), based on Fel d 1 content and quantitative skin testing. Standardized Cat Hair Allergenic Extract has been approved since 1992 for these uses[1][2][3][4].

Brand names

Standardized Cat PeltStandardized Cat Pelt AP

Other names

standardized cat hair allergenic extractcat hair standardizedcat hair extractFelis catus allergen extract