11431
Diminished methadone N - demethylation by CYP2B6 . 6 may provide a mechanistic explanation for clinical observations of altered methadone disposition in individuals carrying the CYP2B6 * 6 polymorphism .
 Chemical: methadone; Chemical: N; Chemical: methadone
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: methadone; Chemical: N; Chemical: methadone