cyclachaena xanthifolia pollen

Cyclachaena xanthifolia pollen is an allergenic extract derived from the pollen of the giant sumpweed (also known as marsh-elder). It is a biologic product used primarily in clinical settings for the diagnosis of hypersensitivity and allergic reactions, specifically autumn hay fever. The extract works by eliciting an IgE-mediated cutaneous response during skin testing (prick or intradermal) in individuals sensitized to the allergens present in the pollen. It was first approved in the United States in 1941, with subsequent biological license applications (BLA101376 and BLA103888) maintaining its status as a diagnostic tool for identifying Asteraceae family allergies.

Other names

Giant sumpweed pollenMarsh-elder pollenIva xanthifolia pollenCyclachaena xanthifolia pollen extract