3761
The maximum change in threshold was 35 dB at 6 kHz measured at the end of the continuous infusion of bupivacaine .
 Chemical: bupivacaine
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: bupivacaine