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The present study was aimed at developing colloidal formulations like solid lipid nanoparticles ( SLN ) and nanosuspension ( NS ) for improving bioavailability of adefovir dipivoxil ( AD ) , a nucleoside reverse transcriptase inhibitor which displays poor oral bioavailability .
 Chemical: adefovir dipivoxil; Chemical: nucleoside
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: adefovir dipivoxil; Chemical: nucleoside