22904
These results are supported by our observations that verapamil , a Ca ( 2 + ) channel blocker , and niflumic acid , a chloride channel antagonist , significantly attenuated AVM - induced [ Ca ( 2 + ) ] i elevation , thereby reducing P - gp expression .
 Chemical: verapamil; Chemical: Ca ( 2 + ); Chemical: niflumic acid; Chemical: chloride; Chemical: AVM; Chemical: Ca ( 2 + )
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: verapamil; Chemical: Ca ( 2 + ); Chemical: niflumic acid; Chemical: chloride; Chemical: AVM; Chemical: Ca ( 2 + )