1043
After discontinuing isoniazid therapy a similar pattern of behavior was noted that was controlled by pyridoxine .
 Chemical: isoniazid; Chemical: pyridoxine
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: isoniazid, pyridoxine 
Answer:
 Chemical: isoniazid; Chemical: pyridoxine