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Those patients in whom d , l - sotalol prevented induction of ventricular tachycardia or ventricular fibrillation were discharged with the drug and followed up on an outpatient basis for 21 + / - 18 months .
 Chemical: d , l - sotalol; Disease: ventricular tachycardia; Disease: ventricular fibrillation
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: d , l - sotalol; Disease: ventricular tachycardia; Disease: ventricular fibrillation