17043
As therapeutics , allosteric ligands possess many theoretical advantages over their orthosteric counterparts , including more complex modes of action , improved safety , more physiologically appropriate responses , better target selectivity , and reduced likelihood of desensitisation and tachyphylaxis .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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