10565
The objective of this investigation was to design and develop water - in - oil - in - water type multiple emulsions ( w / o / w emulsions ) entrapping acyclovir for improving its oral bioavailability .
 acyclovir
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 acyclovir