Antihistamines work to releive the symptoms of allergic rhinitis.
Histamine acts upon two sites in the body, H1 and H2 sites. Routine dental work may be performed. However, many antihistamines including Claritin will produce xerostomia. Claritin-D is Loratadine combined with Pseudoephedrine. While not in the TOP 40, it is also a very popular medication.