3299
Three months later the patient was exposed to a single dose of metoprolol , diltiazem , propafenone ( since he had received this drug in the past ) , and sparteine ( as a probe for the debrisoquine / sparteine type polymorphism of oxidative drug metabolism ) .
 Chemical: metoprolol; Chemical: diltiazem; Chemical: propafenone; Chemical: sparteine; Chemical: debrisoquine; Chemical: sparteine
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: metoprolol, diltiazem, propafenone, sparteine, debrisoquine, sparteine 
Answer:
 Chemical: metoprolol; Chemical: diltiazem; Chemical: propafenone; Chemical: sparteine; Chemical: debrisoquine; Chemical: sparteine