17029
The longacting beta2 - agonists ( LABAs ) , including salmeterol and formoterol , have 12 - hour duration of action and are used with a twice - daily dosing regimen for long - term COPD treatment .
 Chemical: salmeterol; Chemical: formoterol
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: salmeterol; Chemical: formoterol