1565
If confirmed in controlled trials , the long - term results of this open , non - randomized study might indicate that the analgesic effect of capsaicin in PHN is mediated by both interference with neuropeptide metabolism and morphological changes ( perhaps degeneration ) of nociceptive afferents .
 Chemical: capsaicin; Disease: PHN
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: capsaicin; Disease: PHN