4424
Adverse events considered to be related to levofloxacin administration were reported by 29 patients ( 9 % ) .
 Chemical: levofloxacin
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: levofloxacin