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When serum prolactin levels normalized in all four subjects ( mean 11 . 2 + / - 10 . 9 ng / mL ) , the cabergoline dose was reduced to 1 mg / week in three of four subjects .
 Chemical: cabergoline
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: cabergoline