955
The purpose of the present study is to develop a novel method to improve the dissolution of water - insoluble drug ibuprofen and the gastric tolerance of this non - steroidal anti - inflammatory drug which has potentially serious gastrointestinal side effects .
 Chemical: ibuprofen
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: ibuprofen