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Single non - ionic surfactant based self - nanoemulsifying drug delivery system ( SNEDDS ) was formulated and characterised for poor water soluble drug , Atorvastatin calcium .
 Chemical: Atorvastatin calcium
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: Atorvastatin calcium