title: H1 receptor antagonist treatment of chronic rhinitis.
abstract: In patients with chronic rhinitis, H1 receptor antagonists play an important role in relieving the symptoms of sneezing, itching, and rhinorrhea. New information about the pharmacokinetics and pharmacodynamics of first-generation H1 receptor antagonists such as chlorpheniramine has become available in the past few years. Comprehensive pharmacokinetic and pharmacodynamic studies of new relatively nonsedating H1 receptor antagonists such as terfenadine, astemizole, loratadine, and cetirizine are appearing. An understanding of the differences in pharmacokinetics and pharmacodynamics among H1 receptor antagonists is required for optimal use of these drugs.
mesh_terms: D001249:Asthma / Q000188:drug therapy; D004359:Drug Therapy, Combination; D006634:Histamine H1 Antagonists / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000627:therapeutic use*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use; D006801:Humans; D012221:Rhinitis, Allergic, Perennial / Q000188:drug therapy*
chemical_list: D006634:Histamine H1 Antagonists; D006635:Histamine H2 Antagonists