4668
The hepatocytes that were previously incubated with proadifen , a cytochrome P450 inhibitor , are more sensitive to the compound as observed by a rapid decrease in the mitochondrial membrane potential accompanied by reductions in ATP concentration and cell viability and a disruption of intracellular Ca ( 2 + ) homeostasis followed by necrosis .
 Chemical: proadifen; Chemical: ATP; 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: proadifen; Chemical: ATP; Chemical: Ca ( 2 + )