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In this paper we have summarized the mechanisms responsible for first - pass intestinal pharmacokinetic interactions by investigating the intestinal permeability of some cardiovascular , antiviral drugs , their transport with hepatic transporters and CYP3A4 metabolism .
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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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