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Zyban , a sustained - release formulation of bupropion hydrochloride , was recently released in Ireland , as a smoking cessation aid .
 Chemical: Zyban; Chemical: bupropion hydrochloride
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: Zyban, bupropion hydrochloride 
Answer:
 Chemical: Zyban; Chemical: bupropion hydrochloride