Fexofenadine: biochemical, pharmacokinetic and pharmacodynamic properties and its unique role in allergic disorders.
BACKGROUND
Fexofenadine is one of several second-generation H(1)-antihistamines approved for the treatment of various allergic disorders; however, it shows numerous unique properties that make it an optimal choice for many patients.


OBJECTIVE
To review the pharmacology, efficacy and safety of fexofenadine and the attributes differentiating it from other H(1)-antihistamines.


METHODS
We performed a literature search in PubMed/MEDLINE (1966 - March 2009) using the keywords fexofenadine, antihistamine, allergic rhinitis and chronic urticaria. We also reviewed data provided by the manufacturer in addition to reports from various governmental agencies.


CONCLUSIONS
Fexofenadine is devoid of sedative and anticholinergic effects and may offer equivalent or greater efficacy in treating allergic disorders compared with other currently available second-generation H(1)-antihistamines. In addition, fexofenadine may offer cost savings over other selected H(1)-antihistamines owing to its recent availability in generic form in the US.
Smith
Steven M
SM
University of Florida, Colleges of Pharmacy and Medicine, Departments of Pharmacotherapy & Translational Research and Community Health & Family Medicine, Gainesville, FL 32610-0486, USA. ssmithm@ufl.edu
Gums
John G
JG
D000818:Animals; D018926:Anti-Allergic Agents / Q000737:chemistry* / Q000493:pharmacokinetics* / Q000494:pharmacology / Q000627:therapeutic use; D002986:Clinical Trials as Topic / Q000379:methods; D006801:Humans; D006967:Hypersensitivity / Q000188:drug therapy* / Q000378:metabolism / Q000517:prevention & control; D016593:Terfenadine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology / Q000627:therapeutic use
D018926:Anti-Allergic Agents; D016593:Terfenadine; C093230:fexofenadine