914
CONCLUSIONS : Our results indicate that trazodone at 2 . 5 - 20 mg / kg does not block pre - and postsynaptic striatal D2 DA receptors , while at 30 , 40 and 50 mg / kg it blocks postsynaptic striatal D2 DA receptors .
 Chemical: trazodone
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: trazodone