18634
Of the patients aged 60 years and above ( 7 . 2 % ) , the majority ( 95 . 3 % ) suffered unintentional poisoning with pharmaceuticals ; 56 % with warfarin , 12 % with digoxin and 7 % with insulin .
 Chemical: warfarin; Chemical: digoxin
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: warfarin; Chemical: digoxin