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The purpose of this study was to screen for efficacy of a different formulation of adenosine marketed in the US , using both acute noxious stimulation and capsaicin - evoked mechanical hypersensitivity .
 Chemical: adenosine; Chemical: capsaicin; Disease: hypersensitivity
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: adenosine; Chemical: capsaicin; Disease: hypersensitivity