This β adrenergic blocking effect is useful in {TAIL ~ the therapeutic treatment} of {HEAD ~ various cardiovascular conditions} such as angina pectoris, arrhythmia etc 
This β adrenergic blocking effect is useful in { TAIL ~ the therapeutic treatment } of { HEAD ~ various cardiovascular conditions } such as angina pectoris , arrhythmia etc
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH