standardized grass pollen

Standardized grass pollen is a **non-specific allergen immunotherapy product descriptor**, not a single uniquely identifiable drug. In the cited literature it refers to standardized extracts of grass pollen allergens, including five-grass pollen preparations used for **allergen-specific immunotherapy** in seasonal allergic rhinitis or rhinoconjunctivitis. These products are administered by the sublingual or subcutaneous route to induce immune tolerance to grass pollen allergens, with reported effects including reduced symptoms and rescue-medication use, increases in allergen-specific IgG and IgG4, and modulation of type 2 immune responses. However, the exact composition, manufacturer, and commercial product vary across studies, so the term should be treated as a broad allergen-extract concept rather than a single pharmaceutical asset.

Other names

standardized grass pollenstandardized grass pollen extractgrass pollen-specific sublingual immunotherapyfive-grass pollen extractcalcium phosphate-adsorbed standardized grass pollen extract