2505
METHODS : Male Wistar rats received each dose of the alpha ( 2 ) - adrenoceptor antagonist yohimbine ( 0 . 25 - 1 . 0mg / kg ) , the 5 - HT ( 2C ) receptor agonist m - chlorophenylpiperazine ( mCPP , 0 . 5 - 2 . 0mg / kg ) or the GABA ( A ) inverse receptor agonist pentylenetetrazole ( PTZ , 3 - 30mg / kg ) and were subsequently tested in either LES or FPS .
 Chemical: yohimbine; Chemical: 5 - HT; Chemical: m - chlorophenylpiperazine; Chemical: mCPP; Chemical: GABA; Chemical: pentylenetetrazole; Chemical: PTZ
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: yohimbine; Chemical: 5 - HT; Chemical: m - chlorophenylpiperazine; Chemical: mCPP; Chemical: GABA; Chemical: pentylenetetrazole; Chemical: PTZ