27522
Additionally , a sustained potentiating effect of a single dose of 5 - MCA - NAT was seen in rabbits treated with brimonidine once daily for up four days ( extra IOP decrease of 15 . 57 +/- 5 . 15 % , p < 0 . 05 , compared to brimonidine alone ) .
 Chemical: 5 - MCA - NAT; Chemical: brimonidine; Chemical: brimonidine
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: 5 - MCA - NAT; Chemical: brimonidine; Chemical: brimonidine