3621
UM - 272 ( N , N - dimethylpropranolol ) , a quaternary antiarrhythmic agent , was administered sublingually to dogs with ouabain - induced ventricular tachycardias .
 UM - 272, N , N - dimethylpropranolol, ouabain, ventricular tachycardias
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 UM - 272, N , N - dimethylpropranolol, ouabain, ventricular tachycardias