3487
Because of the effectiveness of continuous treatment , it was investigated to what extent a subchronic pretreatment with carbamate ( pyridostigmine or physostigmine combined with either procyclidine or scopolamine ) would protect against percutaneous VX exposure .
 Chemical: carbamate; Chemical: pyridostigmine; Chemical: physostigmine; Chemical: procyclidine; Chemical: scopolamine
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: carbamate; Chemical: pyridostigmine; Chemical: physostigmine; Chemical: procyclidine; Chemical: scopolamine