3709
After intranasal administration of LO to mice ( 0 . 5 mu mol / kg ) , the drug was distributed from the airway space into the lungs , and laninamivir remained in the lung at 24 hours postdose ( 2680 pmol / g ) , with a higher concentration than that in the epithelial lining fluid .
 laninamivir
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 laninamivir