24002
The effect of plasticizer ' s ( PEG ) molecular weight ( MW ) on PVP based solid dispersions ( SDs ) , prepared by melt mixing , was evaluated in the present study using Tibolone as a poorly water soluble model drug .
 Chemical: PEG; Chemical: PVP; Chemical: Tibolone
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: PEG; Chemical: PVP; Chemical: Tibolone