Antihistamine Classification Chart
What Are Second Generation Antihistamines. Web antihistamines are a class of drugs commonly used to treat symptoms of allergies. Cetirizine ( zyrtec) desloratadine ( clarinex) fexofenadine (.
Cetirizine ( zyrtec) desloratadine ( clarinex) fexofenadine (. Web antihistamines are a class of drugs commonly used to treat symptoms of allergies.
Cetirizine ( zyrtec) desloratadine ( clarinex) fexofenadine (. Web antihistamines are a class of drugs commonly used to treat symptoms of allergies. Cetirizine ( zyrtec) desloratadine ( clarinex) fexofenadine (.