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An in vivo pharmacokinetic study using SD rats showed that after oral administration in this formulation , Epi had prolonged half - life , greater area under the curve , and higher relative bioavailability than in an oral Epi solution .
 Chemical: Epi; Chemical: Epi
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: Epi; Chemical: Epi