16163
Methotrexate ( MTX ) , an antifolate drug , is the first - line disease - modifying agent for the treatment of rheumatoid arthritis ( RA ) worldwide .
 Chemical: Methotrexate; Chemical: MTX
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: Methotrexate; Chemical: MTX