17661
The in vitro release study conducted in simulated tear fluid showed a relatively long sustained release of pilocarpine from the prepared PVP / PAAc nanogel particles if compared with pilocarpine in solution .
 Chemical: pilocarpine; Chemical: PVP; Chemical: PAAc; Chemical: pilocarpine
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: pilocarpine; Chemical: PVP; Chemical: PAAc; Chemical: pilocarpine