Phostal

Phostal is a branded **subcutaneous allergen immunotherapy** product developed by Stallergenes for the treatment of IgE-mediated seasonal or perennial type 1 allergic disease. It is formulated as an injectable suspension of standardized allergen extracts, such as grass pollen, tree pollen, or house-dust mite extracts, adsorbed onto **calcium phosphate gel**. The product is intended to induce immunologic tolerance to the relevant allergen through repeated subcutaneous administration, thereby reducing allergic symptoms and reactivity over time. Clinical experience described for Phostal indicates use in children aged 5 years and older and adults, with evidence of efficacy and generally acceptable tolerability in pollen- and house-dust-mite-associated allergic disease.

Brand names

Phostal

Other names

allergen extracts adsorbed onto calcium phosphate gel