1379
The aim of this study was to assess the effects of gabapentin , a drug effective in neuropathic pain patients , on brain processing of nociceptive information in normal and central sensitization states .
 gabapentin, neuropathic pain
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 gabapentin, neuropathic pain