8485
While studying possible mechanisms involved in this inhibition , we observed that pre - treatment with dexamethasone , zileuton or Boc2 ( a selective antagonist of formyl peptide receptors ) , but not with indomethacin , canceled out the inhibitory effect of Cdt venom on the edema induced by BCG .
 Chemical: dexamethasone; Chemical: zileuton; Chemical: Boc2; Chemical: formyl; Chemical: indomethacin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: dexamethasone; Chemical: zileuton; Chemical: Boc2; Chemical: formyl; Chemical: indomethacin