6365
Sub - threshold doses of PGE ( 2 ) ( 4 ng / paw ) or dopamine ( 0 . 4 mu g / paw ) , that do not induce hyperalgesia by themselves , when injected just following alpha beta meATP or carrageenan in rats treated with dexamethasone induced hyperalgesia , which is prevented by A317491 or treatment with periganglionar ( DRG - L5 ) injections of ODN - antisense , against P2X3 receptor .
 Chemical: PGE ( 2 ); Chemical: dopamine; Chemical: alpha beta meATP; Chemical: dexamethasone; Chemical: A317491
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: PGE ( 2 ); Chemical: dopamine; Chemical: alpha beta meATP; Chemical: dexamethasone; Chemical: A317491