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These 6 patients had both renal and liver dysfunction ( P less than 0 . 05 ) , as well as cimetidine trough - concentrations of more than 1 . 25 microgram / ml ( P less than 0 . 05 ) .
 renal and liver dysfunction, cimetidine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 renal and liver dysfunction, cimetidine