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Using an experimental design , the micropellets were prepared with 5 % nystatin content , taking the factors average pellet size ( ~ 200 to ~ 800 mu m ) and the amount of applied carbomer and hydroxyethylcellulose ( 0 - 5 % ) into consideration .
 Chemical: nystatin
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: nystatin