2224
Thus , administration of alpha 2 - adrenoceptor antagonists augments noradrenaline levels and provides an effective therapeutic approach for the treatment of depressive disorders .
 Chemical: noradrenaline
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: noradrenaline