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Here , we therefore review evidence from studies examining the effects of drugs which potentiate serotonin , noradrenaline or a combination of both neurotransmitters on emotional processing .
 Chemical: serotonin; 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: serotonin; Chemical: noradrenaline