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The effect of ketoconazole on the pharmacokinetics of ABT - 384 and its two active metabolites , A - 1331480 and A - 847082 , was investigated in healthy volunteers .
 Chemical: ketoconazole; Chemical: ABT - 384; Chemical: A - 1331480; Chemical: A - 847082
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: ketoconazole; Chemical: ABT - 384; Chemical: A - 1331480; Chemical: A - 847082