3906
Previous studies have shown that major tanshinones isolated from Danshen ( Salvia miltiorrhiza ) inhibited human and rat CYP450 enzymes - mediated metabolism of model probe substrates , with potential in causing herb - drug interactions .
 Chemical: tanshinones
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: tanshinones 
Answer:
 Chemical: tanshinones