The drug development process is essential ... In vitro tests have demonstrated that second-generation antihistamines have improved H 1-receptor specificity and a slower dissociation rate compared ...

This fourth known histamine receptor now provides an attractive drug target for seasonal allergies ... Claritin and the other next-generation H1 antihistamines, which include Allegra and Zyrtec ...

Most drugs with anticholinergic properties are inappropriate for use by older adults. Second-generation H1 antagonists ... the second-generation antihistamines are more useful for allergic ...

second-generation H1 antihistamine such as fexofenadine (Allegra), loratadine (Claritin), cetirizine (Zyrtec), or desloratadine (Clarinex). These medications do not cause drowsiness and are ...

For example, there is still much to be learned about the safety and efficacy of the medications recommended ... and safety of all modern second-generation H1-antihistamines in urticaria are ...