From:  Role of cyproheptadine in chronic urticaria not controlled with second-generation antihistamines: a retrospective study

 Background antihistamine used at the end of four months.

Group AGroup B
Antihistamine used (%)Loratadine38.733.3
Desloratadine25.826.7
Cetirizine9.711.1
Levocetirizine19.411.1
Fexofenadine6.517.8
Total100100
Median dose of antihistamine used (mg/day)Loratadine1010
Desloratadine55
Cetirizine1020
Levocetirizine510
Fexofenadine60180