3322
In the CCI model , PNU - 120596 had long - lasting ( up to 6 h ) , dose - dependent anti - hyperalgesic and anti - allodynic effects after a single injection , while NS1738 was inactive .
 Chemical: PNU - 120596; Chemical: NS1738
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: PNU - 120596; Chemical: NS1738