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The aim of this work was to study the effect of several biocompatible solvents with different physico - chemical properties on the release of ivermectin ( IVM ) , an antiparasitic BCS II drug , from in situ forming PLA - based implants .
 ivermectin, IVM, PLA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ivermectin, IVM, PLA