24003
PEGs with MW of 400 , 600 , and 2000g / mol were tested , and the effect of drug content , time and temperature of melt mixing on the physical state of Tibolone , and the dissolution characteristics from SDs was investigated .
 Chemical: PEGs; 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: PEGs; Chemical: Tibolone