The invention relates to a pharmaceutical product comprising one or a plurality of dosage unit(s) suitable for oromucosal administration where said dosage unit(s) comprises (a) an allergen, (b) an antihistamine and (c)a pharmaceutically acceptable carrier or diluent characterized in that (d)the antihistamine is of the type that do not need metabolization to be active as an antihistamine and (e) one dosage unit comprises one dose of allergen and up to 50 % w/w of the oral daily dose of said antihistamine in a human above 12 years of age.
