28661
Physicochemical characterization of nimodipine - polyethylene glycol solid dispersion systems .
 Chemical: nimodipine; Chemical: polyethylene glycol
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: nimodipine; Chemical: polyethylene glycol