15012
Two hydrophilic drugs , doxorubicin ( an antitumor drug ) and verapamil ( an antiangiocardiopathy drug ) combined preliminarily with chitosan shell coated on magnetic nanoparticles ( MNPs ) , followed by entrapping into the PLGA nanoparticles .
 Chemical: doxorubicin; Chemical: verapamil; Chemical: PLGA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: doxorubicin, verapamil, PLGA 
Answer:
 Chemical: doxorubicin; Chemical: verapamil; Chemical: PLGA