2163
Fentanyl did reduce minor intraoperative movement but had no sevoflurane - sparing effect and increased respiratory depression , hypotension and bradycardia .
 Fentanyl, sevoflurane, respiratory depression, hypotension, bradycardia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Fentanyl, sevoflurane, respiratory depression, hypotension, bradycardia