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The ethanol solution extract of A . pyrethrum was administered to groups of rats in 50 , 100 , and 150 mg / kg doses for a period of 28 days , and the action was compared with control and testosterone - treated rats .
 Chemical: ethanol; Chemical: testosterone
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: ethanol; Chemical: testosterone