670
After premedication with diazepam , glycopyrrolate and local anaesthesia , and induction with standard doses of ketamine , a maintenance dose of 10 - 20 microg / kg / min of ketamine proved safe and effective .
 Chemical: diazepam; Chemical: glycopyrrolate; Chemical: ketamine; Chemical: ketamine
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: diazepam; Chemical: glycopyrrolate; Chemical: ketamine; Chemical: ketamine