4773
Relieving visceral hyperalgesia effect of Kangtai capsule and its potential mechanisms via modulating the 5 - HT and NO level in vivo .
 Chemical: 5 - HT; Chemical: NO
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: 5 - HT; Chemical: NO