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Extract Formulations
Extract Formulations Allergen extracts are available in a variety of formulations. An extract’s formulation directly impacts the stability of the allergenic proteins in solution and therefore the shelf life of the product. The FDA has determined maximum expiration dates for each formulation based on the estimated loss of potency over time. All extracts can be…
Importance of Cross-Reactivity
Importance of Cross-Reactivity Closely related allergen species often exhibit some degree of cross-reactivity. In general, plant species within the same taxonomic family may be substantially, though not completely, cross-reactive. Additionally, there are several allergenic proteins which are common across unrelated species known as “pan-allergens”. For some patients, these proteins can generate an IgE immune response…
Popular Topics
Home > Popular Topics Extract Formulations Extract Formulations Allergen extracts are available in a variety of formulations. An extract’s formulation directly impacts the stability of the allergenic proteins in solution and therefore the shelf life of the product. The FDA has determined maximum expiration dates for each formulation based on the estimated loss of potency…