3288
Simultaneously administration of beta - adrenergic blocking drugs and verapamil may result in profound adverse interactions and should only be administered with great caution .
 Chemical: beta - adrenergic blocking drugs; Chemical: verapamil
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: beta - adrenergic blocking drugs; Chemical: verapamil