17309
Phenacetin , coumarin , tolbutamide , chlorzoxazone and testosterone are commonly used as probe substrates to evaluate cytochrome P450 function .
 Chemical: Phenacetin; Chemical: coumarin; Chemical: tolbutamide; Chemical: chlorzoxazone; Chemical: testosterone
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: Phenacetin; Chemical: coumarin; Chemical: tolbutamide; Chemical: chlorzoxazone; Chemical: testosterone