2776
Interactions between CYP2E1 and CYP2B4 : effects on affinity for NADPH - cytochrome P450 reductase and substrate metabolism .
 Chemical: NADPH
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: NADPH