21763
RESULTS : The efficacy and tolerability of risperidone and aripiprazole for the treatment of irritability in autism have been established with multi - site , randomized , controlled trials .
 Chemical: risperidone; Chemical: aripiprazole
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: risperidone; Chemical: aripiprazole