26320
Desloratadine is highly selective for histamine H1 - receptors , does not cross the blood - brain barrier ( BBB ) , and has minimal adverse events ( very low sedation rate ) , with a better safety and tolerability than first - generation antihistamines .
 Chemical: Desloratadine; Chemical: histamine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Desloratadine; Chemical: histamine