23285
Moreover , cocaine and other drugs of abuse can affect the strength of glutamate synapses in this structure , lastly modifying neuronal activity in main regions of the reward circuitry .
 Chemical: cocaine; Chemical: glutamate
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: cocaine; Chemical: glutamate