5427
Hepatic intrinsic clearance ( CLint , h ) of six CYP3A4 substrates ( alprazolam , clonazepam , diltiazem , midazolam , nifedipine , and quinidine ) , covering a wide range of clearance , in monkeys correlated well with that cited in literature for humans ( R = 0 . 90 ) with a simple equation of Y = 0 . 165X ( Y : human CLint , h , X : monkey CLint , h , represented in mL / min / kg ) .
 alprazolam, clonazepam, diltiazem, midazolam, nifedipine, quinidine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 alprazolam, clonazepam, diltiazem, midazolam, nifedipine, quinidine