9146
In the prefrontal cortex , NIC and MDMA each induced significant increases in [ ( 3 ) H ] epibatidine binding ( 29 . 5 and 34 . 6 % , respectively ) with respect to saline - treated rats , and these increases were significantly potentiated ( up to 72 . 1 % ) when the two drugs were associated .
 Chemical: NIC; Chemical: MDMA; Chemical: [ ( 3 ) H ] epibatidine
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: NIC; Chemical: MDMA; Chemical: [ ( 3 ) H ] epibatidine