2350
A possible metabolic interaction , which could explain such deviation , was investigated , and it was observed that at higher mixture concentrations increased MDMA metabolism could be contributing to divergences from additivity .
 Chemical: MDMA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: MDMA