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When tacrolimus side effects persist despite dose reduction , conversion to cyclosporine - based immunosuppression ( CyA ) is necessary .
 Chemical: tacrolimus; Chemical: cyclosporine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: tacrolimus; Chemical: cyclosporine