18015
Excess nicotinamide , a form of vitamin B ( 3 ) , is metabolized through two enzymatic systems and eventually excreted from the body .
 Chemical: nicotinamide; Chemical: vitamin B ( 3 )
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: nicotinamide; Chemical: vitamin B ( 3 )