1048
The patient has been followed for six years and has required pharmacologic doses of pyridoxine to control her behavior .
 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: pyridoxine 
Answer:
 Chemical: pyridoxine