3152
The cataleptogenic effect of THC was significantly reduced in rats treated with 6 - OHDA and in rats with lesions of the locus coeruleus but not in rats treated with desipramine and 6 - OHDA , as compared with control rats .
 THC, 6 - OHDA, desipramine, 6 - OHDA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 THC, 6 - OHDA, desipramine, 6 - OHDA