3452
The initial dose of labetalol for lowering blood pressure was similar , 0 . 52 - 0 . 59 mg / kg , in all the groups .
 Chemical: labetalol
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: labetalol