2920
Azelastine , a novel antiallergic medication , was compared with chlorpheniramine maleate and placebo for efficacy and safety in the treatment of spring allergic rhinitis in a multicenter , double - blind , multiple - dose , parallel - groups study .
 Chemical: Azelastine; Chemical: chlorpheniramine maleate; Disease: spring allergic rhinitis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Azelastine; Chemical: chlorpheniramine maleate; Disease: spring allergic rhinitis