Figures & data
Table 1. Summary of the properties of the first and second generation antihistamines [Citation20,Citation21].
Table 2. Characteristics of included studies concerning standard dose sg-AH in chronic urticaria.
Table 3. Recent evidence on response rates comparison between updosing or combinations of antihistamines.
Table 4. Clinical and biochemical parameters predicting nonresponse or poor response to second generation antihistamines.