15539
Clopidogrel and clarithromycin significantly increased the sibutramine plasma concentration , but their effects differed between enantiomers ; a 2 . 2 - fold versus 4 . 1 - fold increase in the AUC in S - enantiomer and 1 . 8 - fold versus 2 . 0 - fold for the R - enantiomer , respectively .
 Chemical: Clopidogrel; Chemical: clarithromycin; Chemical: sibutramine
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: Clopidogrel; Chemical: clarithromycin; Chemical: sibutramine