14979
Palonosetron , a second - generation 5 - HT3 receptor antagonist with a different half - life , a different binding capacity and a different mechanism of action than the first - generation 5 - HT3 receptor antagonists appears to be the most effective agent in its class .
 Chemical: Palonosetron
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Palonosetron