2795
Patients who received the same anesthetic procedure were selected : 2 minutes after intravenous injections of the pretreatment drugs , anesthesia is induced with 0 . 3 mg . kg - 1 etomidate injected intravenously over a period of 20 - 30 seconds .
 Chemical: etomidate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: etomidate