181
i . p . and of 20 mg . by the intravesical route , and acrolein at doses of 0 . 5 mg . by the intravesical route and of 5 mg . / kg .
 Chemical: acrolein
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: acrolein