3781
The serum vecuronium level measured in 1 patient 14 days after the drug had been discontinued was 172 ng / mL .
 Chemical: vecuronium
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: vecuronium