30088
Local LC citalopram effect was abolished by LC presence of the 5 - HT3 receptor antagonist MDL72222 ( 1 mu M ) but not the 5 - HT1 / 2 receptor antagonist methiothepin ( 1 mu M ) .
 citalopram, MDL72222, methiothepin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 citalopram, MDL72222, methiothepin