3385
Both tolbutamide and gliclazide stimulated phospholipase C activity ; however , only gliclazide did so independently of its activity at K ( ATP ) channels , and this activity was partially inhibited by pertussis toxin .
 tolbutamide, gliclazide, gliclazide, K, ATP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 tolbutamide, gliclazide, gliclazide, K, ATP