2375
Therefore , concomitant administration of small doses of bradykinin receptor antagonists and NO synthase inhibitors can be effective in alleviation of neuropathic pain , even in hospital care .
 bradykinin, NO, 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:
 bradykinin, NO, neuropathic pain