3506
After oral administration of linaclotide , < 1 % of the dose was excreted as active peptide in rat feces and a mean of 3 - 5 % in human feces ; in both cases MM - 419447 was the predominant peptide recovered .
 Chemical: linaclotide; Chemical: MM - 419447
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: linaclotide; Chemical: MM - 419447