19221
Simulations revealed that newborns born early ( < 1 hour ) after maternal nevirapine intake would benefit from a 3 - fold higher nevirapine dosage ( 6 mg / kg ) after birth for analogous protective plasma concentrations over the first 2 weeks .
 Chemical: nevirapine; Chemical: nevirapine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: nevirapine, nevirapine 
Answer:
 Chemical: nevirapine; Chemical: nevirapine