4978
It is important to note that exceptions can occur , and different metabolite levels may be considered depending on the physiochemical properties of metabolites ( e . g . , increased lipophilicity ) and whether the metabolite contains structural alerts for DDI ( e . g . , mechanism - based inhibition ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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