13891
Conclusion : Iontophoresis is a promising method to obtain a fast and sustained concentration of AMX and CFX in skin .
 Chemical: AMX; Chemical: CFX
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: AMX; Chemical: CFX